22 January 2013 ~ 111 Comments

Betta Fish Bubble Nests

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What are the bubbles at the top of my betta fish tank?

At one time or another, you may have noticed clusters of tiny bubbles surrounding the rim of the tank belonging to male betta fish. These are called bubble nests and are completely normal – in fact bubble nests are a good sign that you betta fish is both healthy and happy.
Bubble Nest

Why do betta fish build bubble nests?

Betta Fish Bubble Nests
In nature, male bettas cluster small bubbles on the water surface, or underneath debris and leaves to build their nests – preparing for the birth of their young. After their nests are complete, they will then coax females under to spawn. The female bettas release eggs soon after, which are then swiftly captured by the males and placed inside the bubble – and this is why betta fish build bubble nests. Aside from releasing the eggs, the female betta fish do not play any role in raising or protecting the young. Rather, the male takes on the role of sole caretaker to protect the nest by chasing off predators, and returning any fallen eggs to the nest. The eggs hatch after a few days, but the fry continue to stay under the bubble nest’s protection until they can survive on their own.

Bubble nest building comes instinctively to a male betta, even without the presence of a female. Almost all males will blow bubbles, the size and rate of the nest usually depends on the male at hand, and potentially other things like health, water and age parameters.

Betta BubblesHow often should a betta fish build a bubble nest?

It is common for some males to blow bubbles frequently, and you may even find that some males create new nests on a daily or weekly basis; while other male bettas will only blow a couple nests per year. You will find that healthy ones tend to blow more nests, so if you see a nest, you can consider it a sign that your fish is healthy and happy. But don’t be worried if your betta does not blow nests. It doesn’t have to mean your fish is not healthy, there are many other reasons why they would choose not to.

Betta Tip: A reason your fighting fish may not blow a bubble nest is that the filter of your tank is causing too strong a current at the top of the tank

Keep in mind that not all bettas build bubble nests regularly. Additionally, if you have even the lightest current in your tank it can discourage nest building. And of course most experienced betta keepers choose to cycle their tanks and keep filters Betta Twitterrunning; thus, creating a healthier and more stable living environment. If this is the case, you will probably see that the fish do less bubble nest building because of the current of the filter. If you wish to cycle and allow the male to create nests, you can always place floating plants or a half of a styrofoam cup in the tank to encourage the behavior. In the end, bubble nests are interesting to observe, a good sign of health and happiness but not necessary unless you are breeding betta fish.

All the images on this post were submitted by the followers of our Twitter account!
Thank you to @hprincessw @Ingridvpty @_KaylaJoy_ @KatieBeltrame and sorry if you submitted a pic and it wasn’t used! Maybe next time! :)

Hope this article helps! Did you find it interesting? So will your friends, hit share and let them know all this information about bubble nests and betta fish care. :)

111 Responses to “Betta Fish Bubble Nests”

  1. Chris 28 March 2013 at 3:19 am Permalink

    I think it’s kind of cool that they make these little nests. Do you think that the betta fish does this while it eats though? I swear my betta fish do this while they are feeding.. but maybe they are just stirring up bubbles sort of say. What do you think?

    • @BettaInfo 28 March 2013 at 7:21 am Permalink

      He is probably just creating bubbles accidentally whilst trying to get the food from the top as opposesed to actually trying to create a nest :)

    • leonardo 1 January 2014 at 8:43 pm Permalink

      I only have 3 large siamese fighters black,red and yellow and only two have create nests but I have a problem breeding them as time passes I have 28 siamese fighters in all

  2. Marisa 2 April 2013 at 8:52 pm Permalink

    My betta had built up a great bubble nest over the last three weeks. It took up a quarter of the tank! But yesterday morning I came in and it was completely gone! Is there something wrong with my betta?

    • @BettaInfo 6 April 2013 at 1:01 am Permalink

      No nothing to worry about there! Do you know how it disappeared?

      • Bob 27 July 2013 at 12:06 am Permalink

        Most like the air escaped. Usually males make bubble nests when ready to spawn or have seen a female betta fish

    • Arianna 3 June 2014 at 1:38 am Permalink

      No it justs means it is preparing to mate and have children with a female betta fish

  3. brittany 17 April 2013 at 4:39 pm Permalink

    I had just got my betta 3days ago. Everything was fine. Then this morning i realized that my fish had bubbles at the top of the tank? Im prettt sure its a male. Is this normal? What should i do or should i do nothing?

    • @BettaInfo 17 April 2013 at 9:35 pm Permalink

      Completely normal. It is a good sign that your male betta fish is happy and healthy! So it is good news.

      Loads of information literally on this page – look no further!! haha ;)

  4. Afrika 22 April 2013 at 4:34 am Permalink

    So I have 2 females and a male all swimming in my tank, they seem to get along fine. I’ve had them for about 3montbs and there is no damage to them! I’ve noticed one of them getting fatter (pouch on underside) which has seemed to reduced this morning and there is a bubble nest. I was wondering if eggs have been laid? I thought he’d build a bubble nest long before they are laid?! If there are eggs what do I do now?? How do i care for them? Separate the f/m fish? How do I clean the tank? How long until I can notice the fry? Can I sell them? At what age?

    • josie 17 July 2013 at 4:22 am Permalink

      When the females arent fertile anymore the male will try and kill them theyre supposed to be seperate D:

  5. megan 1 May 2013 at 11:10 am Permalink

    My male and female mated last night and he put all the eggs into his nest. However this morning all the bubbles had popped and the eggs where on the floor. He was tending to it all night so I’m not sire how this happened. He was so proud of himself.
    There isnt a current amd the filter is off…..why would this of happened? He keeps trying to put his fry back up and the bubbles eventually pop again. Will we end up with babies or not? Do they need to be on the surface at all times to survive?

    • @BettaInfo 4 May 2013 at 12:21 pm Permalink

      Hi, The eggs can hatch without being in the bubble nest. But sometimes the male will eat the eggs or they wont be cared for as much.

      Sorry its been a few days since you wrote your comment and me answering, can you confirm if you saw any betta fish fry / babies?

      Hope so :)

  6. Niamh 9 May 2013 at 10:11 am Permalink

    I have a male paradise gourami and he was recently added to a bowl on his own. Which he loves as he’s started making a bubble nest!It’s nothing major but I was just wondering what happens if I don’t get a female? Will he keep building it or will it affect him in any way?

    • @BettaInfo 10 May 2013 at 6:48 pm Permalink

      Nope nothing will happen! Its just a natural behavior betta fish have! They love blowing bubble nests. It’s a great sign that you betta fish is happy and healthy!! Thanks Niamh :)

  7. Miley 12 May 2013 at 3:41 pm Permalink

    I got a male betta fish 2 months ago and I was wondering if he’s making all those bubbles that I should buy a female one so they could mate what do you think? The bowl is only 1 gallon though.

    • jade 8 June 2013 at 2:27 pm Permalink

      i dont think you should me and my brother both ave a female and male and all they do is fight

      • Hayley 26 February 2014 at 1:33 am Permalink

        Yes, when you get a female, introduce her slowly to him, wether with a tank divider or a clear glass. If they are compatible they will flirt, he will dance with her and try to impress her by pushing forward his front gills (which with another male is a sign of aggression), he will build a bubble nest and if she is dark in colour on her body, you will see clearly vertical stripes, but barely visible for white females. When first introducing them together keep an eye on there behaviour, if its overly aggressive take a step back again and separate them where they can still see each other. Before mating its very slightly aggressive, before he wraps her up.. If they are swiftly darting around a lot then that’s too aggressive. Take your time, and not all are compatible. You will see the front of her will be swollen and her egg dot protrudes more then usual, then she is ready

  8. Athi 15 May 2013 at 8:34 pm Permalink

    Betta fish related:
    what will happen if the bubble nest breaks after the eggs have been laid. will the egg fall off and die? and if breaks after the eggs have hatched ??

    • @BettaInfo 18 May 2013 at 2:05 pm Permalink

      The eggs may or may not die, they do not need to be in the bubble nest to hatch. Some breeders take the eggs away to hatch on their own, in a seperate tank. It may stress the male out though if he is constantly trying to look after the eggs in a bubble nest and they keep falling to the floor.

  9. tara 19 May 2013 at 9:50 pm Permalink

    I actually named my fish bubbles cause thats all he’s done sine I got him about a week ago! I was curious why now I know he’s happy and healthy :) yay

  10. Tiwana 21 May 2013 at 3:18 am Permalink

    Hi I need your advice. I recently got a male betta ( B-Red) and I thought he needed a neighbor, so I got Blue (in a separate tank). Now B-Red acts all agitated. No longer coming to stare at me when I approach, and not eating like he did before. In stead he backs up slowly, hides, or swims around crazily, and eats after I move away. Now The tanks are separated 4 inches apart with stuff in between so they are not really seeing each other, as I thought he did not like that I got another fish. But he is still acting shady. Can you explain why he is no longer friendly, hides, or acts agitated. Meanwhile, Blue is chillin, like he used to at first. They are both in 1Gal tanks. Please advise.

    • @BettaInfo 21 May 2013 at 9:43 pm Permalink

      Sounds like he got stressed when he could see the other male and felt threatened. Sometimes betta fish can be stressed / take a litle time chilled out before coming back to their normal selves. Hope he gets well soon!

  11. Alyssa 21 May 2013 at 4:15 am Permalink

    Hi there !
    We have a very pretty blue male Betts named Carlos . He is in a 2 gallon tank by himself . His bubble nest is almost the entire surface ! Do bubble nests ever mean they are sick ? Just wondering because his nests have never been so large .

  12. Indrasis 30 May 2013 at 3:11 pm Permalink

    My Male betta fish made bubble nest . I kept two male betta fishes using a divider. The bubble nest kept on increasing for two days. I then did put a female betta there in the tank. But the male started attacking it frequently. I then removed the female and put it in the other tank(Replacing the other male to another tank) so that male can see it. IS there any chance that Male will prepare the nest again and they breed?

    • Marissa 2 November 2013 at 8:59 pm Permalink

      Yes they will probably get ready to mate again. First give them sometime to get used to seeing each other. And maybe the female wasn’t fertile. make sure she has stripes.

  13. A.John Peter 3 June 2013 at 7:30 pm Permalink

    Let me know Why some male Bettas are eating their eggs

    • @BettaInfo 4 June 2013 at 10:55 am Permalink

      Well most don’t, the male betta fish pick up the eggs in their mouths and take them to the bubble nest. Sometimes they keep them in their mouths for a little while so it looks like they have eaten the eggs. Every now and them the male betta fish may get confused and eat some eggs but this is rare and there is no real reason for it.

  14. Eavan 4 June 2013 at 10:06 am Permalink

    Phew that’s a relief, I though bluey was sick. But will he pine to mate? He’s in a little square tank all alone. I hope he’s happy.

  15. jade 8 June 2013 at 2:20 pm Permalink

    we keep removing are bubbles but are fish keeps making more he has been doing it ever since February 23 2013. so last week we got a female and the female we moved to a different tank from the males after they had a baby but the male is not looking after it.

  16. Jennifer 26 June 2013 at 6:39 pm Permalink

    Hi, we just got our 3 year old daughter her first fish.. a male betta. We have had him since Sunday and I just noticed he created a bubble nest. I know this is completely normal, but my question is.. do I leave it or clean it out? Also, is it common for them to stay by the nest?

    He’s the only one we have and we won’t be mating.


    • @BettaInfo 6 July 2013 at 2:09 pm Permalink

      Hi Jennifer, thanks for leaving a comment and sorry for late reply – I have been away a little while.

      Perfectly normal, I would leave it, it is also a kind of territory mark for him, he wont like it if you break it (though its not the end of the world if you do). And yeah, they quite often stay by the nest, your comment and questions sound completely normal behavior for betta fish and bubble nests.

  17. melanie 3 July 2013 at 1:43 am Permalink

    Ok my male betta fish layed bubble nest and I want to get a girl can I do that get a femal and but it with the male

    • Letisha 30 July 2013 at 11:39 pm Permalink

      You can get a female but only put it with the male when breeding. Sometimes the male kills the female or the other way around.

  18. Aya 13 July 2013 at 7:58 am Permalink

    Hi, I’ve had my betta for two months now and he’s been making bubble nests ever since I got him. Every time I clean out the tank, his nests get bigger. I was wondering if I should just leave him as he is, but would it make him happier if I mated him? And do they go through the while egg thing only once in their lives? How long does it take for the whole thing to happen ( mate, lay eggs, eggs hatching, frys being able to swim theirselves, and seperating the female and male frys)?

    • @BettaInfo 13 July 2013 at 4:36 pm Permalink

      I wouldn’t recommend mating your betta fish unless you know what you are doing. He is happy enough making nests and protecting them. Mating betta fish can often end up in injuries if not done properly.

      If you still want to find out more on betta fish breeding there are some good videos on Youtube.

  19. Letisha 30 July 2013 at 11:36 pm Permalink

    My betta blows small nest and doesn’t care much about it. Should I be worried?

  20. lina 1 August 2013 at 3:27 pm Permalink

    Had my betta for a year and wow his amazing. I clean his water every week and he overnight builds a nest and stays until the next cleaning. Current nest is biggest I’ve seen, stretches along the side and back of 15-20L tank all the way around!! Crazy fish he is :)))

  21. Willy Huynh 5 August 2013 at 5:43 am Permalink

    Why my fry are nearly all dead after just one night, even when they are more than 01 month old ? When they hatched, I guessed there must have been a thousand of baby bettas. Then after 01 month only less than 01 hundred could survive, and then after 01 night they were all gone. Can you tell what happened to my baby bettas ?

    • Yolo 9 September 2013 at 12:26 am Permalink

      Did you feed them???

  22. nate 8 August 2013 at 12:50 am Permalink

    I got a male and female in the same tank. how do I tell if there are eggs in the bubble nest? when do I take the female out with out stressing out the male. the last time I thought there were eggs I took her out right away and he ripped his nest apart???

    • @BettaInfo 8 August 2013 at 10:33 pm Permalink

      Hmm… you should try breeding betta fish if you don’t know what you are doing. Check out Youtube, there are plenty of step by step videos out there.

  23. Anil 9 August 2013 at 4:18 pm Permalink

    Hello I got only one Betta fish in a tank and its has bubbles in it.
    Please tell me what to do now

    • @BettaInfo 9 August 2013 at 5:22 pm Permalink

      Dont do anything. bubbles in your betta fish tank is ok! Its a good sign to see a bubble nest, it means your betta fish is healthy. Your on the right page to find out more information, have a read above ;)

  24. Letisha 13 August 2013 at 10:47 pm Permalink

    My betta’s bubble nest keeps on popping.Is there anything I should be worried about?

  25. Ashley 19 August 2013 at 7:47 am Permalink

    No :( bubblenests don’t mean they’re happy! It’s instictual! Even a betta in a dirty cup will bubblenests. That doesn’t mean he’s happy OR healthy :(

    • @BettaInfo 19 August 2013 at 7:10 pm Permalink

      Hi Ashley, Thanks for joining the betta conversation! :)

      Bubble nests are definitely a naturally occurring instinct of a betta fish. However, this behavior is generally a good sign of health and happiness. Its not a 100% guarantee that the betta fish is healthy and happy but it is a very good sign. :)

      • tasha 23 August 2013 at 6:16 am Permalink

        Betta naturally live in the muddy waters of Thailand, so having a dirty cup does not mean he is unhealthy. It is better to have clean water (of course) but a Betta can live for weeks in murky water. I have bred and enjoyed Betta fish for over 15 years and they are still content in water that is somewhat cloudy. I do not keep them in cloudy water often. I try to clean it at least once every 2 weeks. They are however still fine.

        • Jason 16 September 2014 at 5:49 am Permalink

          Hey, you say you’ve been breeding for 15 years, I’ve been attempting to get started over the past 4 months and every time I get my fighters together after letting him build up his nest and having introduced them for a few weeks I let the female in with the male and they do the dirty deed but they end up breaking the nest and not getting anything done, I’ve attempted this with multiple females with multiple males, can you tell me what I as the keep am doing wrong?

  26. Gabrielle 26 August 2013 at 10:36 pm Permalink

    My Crowntail Betta blows bubble nests often, but they are never as big as the ones from the pictures. That’s okay, right? I just want to make sure..

    Also, a little thing I find amusing, there are parts of a plastic plant I bought him when I first got him, that stick out of the water, and he has a habit of making bubbles all around where the plant sticks out!

    • @BettaInfo 28 August 2013 at 9:25 pm Permalink

      Ecerything sounds fine! Yeah if there are plants on the surface of the water that is where the betta fish will tend to create and build its bubble nest! sounds like you are having fun with your betta! :) Thanks for all the comments Gabrielle, I have noticed them across the site.

  27. Melanie 1 September 2013 at 5:35 pm Permalink

    My female Betta has been making bubble nests lately. Is this unusual behavior for a female? She seems very happy and always greets me with a gill display when I talk to her.

  28. Gaige 2 September 2013 at 4:02 pm Permalink

    My male crowntail betta blows bubbles, but they pop after a few seconds! Does this mean he is trying to make a bubble nest?

  29. Worried 9 September 2013 at 12:31 am Permalink

    I tried to breed my male and female betta,but the female swam at the top of the tank and destroyed my males bubble nest. I dont know what to do? Help!!!

  30. Mikayla 23 September 2013 at 6:16 am Permalink

    I have a question regarding the breeding of betta fish.
    Once the female betta gets squeezed and starts releasing eggs, does she have to finish releasing all 70+of them before being taken out? Or can she be taken out after releasing like 5?

    Please let me know!


    • @BettaInfo 26 September 2013 at 5:55 pm Permalink

      You should let all the eggs be released so that they all (or at least a lot of them) will be taken to the bubble nest to be protected by the male betta fish.

  31. Rendy 4 October 2013 at 5:40 am Permalink

    Hi I hope you can help!

    My male betta is not making bubbles but showing interest by flaring at the female which is in a bowl inside the breeding tank. How long does it usually take for him to make these bubble nest? The female looks to be ready and is already fat with vertical stripes…I’m only planning to release her with the male when he has already made the bubble nest…I’m afraid if he takes too long and i dont release her she will lose her moment…is that possible? What should i do?

    Great website btw!!!

    • @BettaInfo 4 October 2013 at 10:54 am Permalink

      Thanks for your comments about the website! :)

      If the water is flowing strongly that can put a betta fish off. You could also try floating plants which will act as a nest area.

  32. hi 11 October 2013 at 3:15 pm Permalink

    i have no idea what my betta fish are doing my female is at the bottom and if she comes up the male races around her and she goes back down. This has been happening for two days and i am worried the female will drown and i don’t think she layed her eggs yet.Plus i give them food but the female won’t eat

    • @BettaInfo 11 October 2013 at 3:41 pm Permalink

      The two betta fish should not be in the same tank. The male is very territorial of the bubble nest and they will fight.

  33. CHERLIN 31 October 2013 at 11:02 am Permalink


    My betta fish haves eggs and now are in stage white color ,should i took out the betta fish and let the eggs alone?

  34. Marisabel 25 November 2013 at 12:45 am Permalink

    My betta managed to make a bubble nest within the first day of me purchasing him. I cleaned his tank 6 days after and he was in the process of making a new one.
    Since then he has made a new bubble nest every 2 days and is trying to connect them daily. Is that normal?

    • @BettaInfo 25 November 2013 at 11:08 am Permalink

      That’s a lot of bubble nests, but dont be worried that is fine! :)

  35. Samantha 4 December 2013 at 5:25 am Permalink

    Hi, I just got a crowntail beta yesterday and he has bubbles along the rim of his tank. Is this him or just natural bubbles?

  36. Roachy 15 December 2013 at 8:05 pm Permalink

    I noticed yesterday that my beta tank has big bubbles scattered around the surface. Not anything like a bubble nest. Never saw him do this before. I gave him blood worms for the first time a couple days ago, he doesn’t seem interested, but ya….any ideas?

  37. Lori 19 December 2013 at 10:16 pm Permalink

    I got a live plant to put in with a betta and didn’t get all of the fibrous cotton like stuff that’s around the roots off before I put the betta in well he is blowing his nest with little pieces of that stuff in it which he defends like they are eggs. I wanted to share that. Around here it’s just strange that a male will clean.

  38. Abby 21 December 2013 at 3:42 pm Permalink

    I just got my betta fish today. Its a male named Detective Buebbles but we call him Buebbles for short (Yes it is spelled right). Anyways he keeps like blowing bubbles around his tank. I hope he is fine and I really like him.

    P.S Say Hiii

  39. Siobhan 23 December 2013 at 3:47 am Permalink

    My betta has been unwell for about a week now, he’s my first one but had him for almost a year, we have a wonderful relationship. He has a swollen belly and has appeared to experience swim bladder. A few days ago he was losing balance and tipping all the way over and seemed almost disorientated. I’ve had him in a hospital tank, and thought he may be constipated( this is what I’m truly wishing for and not anything more sinister) he has Definately improved over the last 3 days and is now making bubbles again along the top, however his tummy is still swollen but physical appearance is perfect. Good colour, fins and eyes. He as slowly become more active. I have cut his food to less then half for 3 days. He still seems uninterested. I have also added daily treatments of antibacterial therapy to the water as the fish shop thought it could be an ulcer or tumour

    • @BettaInfo 27 December 2013 at 6:47 pm Permalink

      Hi Siobhan, thanks for sharing your story! It sound like you hav identified and then done the right thing! Good work :)

  40. Shaka44 24 December 2013 at 7:43 pm Permalink

    Hi, I have a male and a female crown tail beta in the same tank and there was a divider but we took it out and now they are sitting on the bottom of the tank almost looks like they are snuggling. I was wondering what that means, what they are doing, and if something is wrong.


  41. renee 31 December 2013 at 9:11 pm Permalink

    I have two beta fish. Male and female. I have a divider and the two are in the same tank. I have a crucial bubble next but I am afraid that if I let them together he will kill her but I want babies. What to do?

    • @BettaInfo 1 January 2014 at 1:09 pm Permalink

      Breeding betta fish can lead to injuries and fights. I would only do this if you have experience. There are plenty of videos on YouTube that take you through the steps, however I wouldn’t recommend it. I hear too many stories where the male has seriously injured the female.

    • crystal 7 January 2014 at 11:37 pm Permalink

      hi, does your female have eggs? you can tell if her belly is big and she has a white dot on the bottom of her belly. just put her with the male, you have to try, the male will be aggressive with her at first, but if it gets too bad then remove her. my male was aggressive with my female, she just ran away and hid, but they finally mated, they latched to each other over and over and it went for over an hour, but she was ready, her belly was full, and she released her eggs. they BOTH put the eggs in the nest, she had hundreds of eggs, but unfortunately, the nest didn’t hold them and they are all lying at the bottom of the tank, I’m sad because I don’t know if they’ll hatch. so you just have to put her with him and watch closely.

  42. Scott 9 February 2014 at 4:20 am Permalink

    Hi. My betta is making a bubble nest and taking the air out from the air and putting it in his bubble nest. Is that normal? (His name is Basweiler) I might have already sent this. I’m not sure…

    • @BettaInfo 14 February 2014 at 9:45 am Permalink

      Completely normal! Betta fish cab breathe from the air at the waters surface, that’s what you are seeing him do.

  43. macey 16 February 2014 at 7:34 am Permalink

    I’ve had my betta for about two years now and he use to blow bubbles, but doesn’t anymore should i be worried?

    • @BettaInfo 16 February 2014 at 8:01 pm Permalink

      No, as long as your betta fish looks as healthy and perky as he always has! :)

  44. Richard 24 February 2014 at 12:29 am Permalink

    I have 2 bettas 1 female and 1 male I put them both together and both flared their gills but did not make any threating moves. I seperated both of them and the male calm down in a few minutes but I had to take the female out and put her in another tank before she would calm down. since they did not make any threating moves towards each other do you think they would have gotten along with each other after awhile or would it have stressed them to death?

  45. Micah 21 April 2014 at 2:23 am Permalink

    Hi I have had my male betta fish Murphy sometime last year and I have had female betta fish Murph for couple months and their in the same tank that they were in when we got them and we do change the water with betta fish water and I know their HAPPY and HEALTHY!!! But Murphy just started making a nest. But how is it possible because they are in different tanks! So I don’t know if Murph is breeding because she has no strips and so can you give me an answer very very very very very SOON PLEASE!!!

  46. bogart 16 May 2014 at 9:42 pm Permalink

    can i feed the male betta while he was protecting the eggs?

  47. bettafishhhhh 10 June 2014 at 6:12 am Permalink

    My male betta fiah keeps making bubbles after I clean his tank. I know this means he’s happy ( horny ) and I was thinking I should buy a female betta fish any tips on how to buy a female fish thats ready to mate ?
    Also should I breed them in 1 gallon tank or should I get a bigger one and exactly how big. I’ve done alot of research and can’t wait to make him happy with a female betta!

  48. slenderssss 13 July 2014 at 7:35 am Permalink

    Hi . my betta male makes bubble nest yesterday but then I transfered him to a bigger tank to prepare him for breeding . then he seems sick when I transfered him . I waited till he recovers then I introduce a female betta beside his tank. He sees it and flares to the female and the female swums crazily upward and downwards . but the problem is the male seems tired of making bubble nest which is essential in breeding . what should I do ?

  49. NEW BETTA OWNER 29 July 2014 at 5:27 am Permalink

    (Im sorry i know this has NOTHING to do with this post but…) i just came in from a day of swimming and checked on my Betta (Vail) up by his Bubble nest like always i looked at him AND HE FLARED AT ME he stopped like he noticed it was just me and went on with his swimming i’ve had him for 3 days now he hasnt done this his nest it pretty large so i know he’s healthy and happy please tell me is this normal???? Please get back to me when you can Thanks~

  50. Betafishy 1 August 2014 at 7:48 am Permalink

    I’m so excited because, I got my Beta fish about 3 or 4 days ago and he made his first bubble nest today :D

  51. Danny 7 August 2014 at 5:02 pm Permalink

    Hi. I got a male betta about a week ago and a day later he started building fa bubble nest, so I decided to go get him a female. I put them together but separated through a transparent plastic. They started flaring at each other and the male started showing a lot more interest In building the bubble nest and the female had vertical stripes (signs of eggs). But before I could clean the tank out, the nest was built around the edges about half an inch the next day. I was wondering if its okay to clean out the tank so it can be clean for breeding?

  52. maya 16 September 2014 at 4:03 am Permalink

    Dear Betta parents, how do I know when the male is already coaxing the female? When & jow long do I leave the male & female from the tank? I don’t know if the have been coaxed or not. Please help. Thank you.

  53. Jenna 16 September 2014 at 5:43 pm Permalink

    what if you have a bubble nest but your fish isnt a male and its obviously a female because it has the pregnant looking abdomen and the white dot?? im super confused! help

    • @BettaInfo 20 September 2014 at 6:03 pm Permalink

      Don’t worry about it female bettas can create bubble nests too! :) Much more common for male betta fish to blow bubble nests though.

  54. Alesia 17 September 2014 at 4:02 am Permalink

    I have my betta “Robin” in a 5.5 gallon, is that too big & how often should clean the tank?

    • @BettaInfo 20 September 2014 at 6:02 pm Permalink

      5.5 gallon is perfect! I bet he loves swimming around it! Get a few plants and it will be perfect for him. Do weekly cleans of 25% of the water. :) Hope this helps.

  55. Nicole Rojo 22 September 2014 at 8:08 pm Permalink

    My male betta had a bubble nest but now all the eggs are in the bottom of the tank what can I do the help the eggs?

  56. Nicole Rojo 22 September 2014 at 8:17 pm Permalink

    please help have male beta who made nest and has eggs in nest and now that the female is no longer in the tank he is has let all the eggs sink to the bottom and is not fixing them what can I di to try and save the eggs

  57. jackieavila15 23 September 2014 at 8:31 pm Permalink

    Hi, I have read this article over and over again it is always saying how males make bubble nests when a female is present, or when theyre happy but I recently bought two betas and they both were supposed to be male, at first they were separated by bowls but now theyre only divided by a small glass. What’s surprising is that one of them has made a pretty big bubble nest. And the other has made some bubbles as well, what does this mean??. Should I get a female?? They’re both supposed to be males.

  58. Sadie 5 October 2014 at 11:58 pm Permalink

    I got my betta fish yesterday evening, and he has already made a bubble nest!!!!!! Part of it has already started to pop though……. I just wanted to know if that was okay

    • @BettaInfo 17 October 2014 at 8:41 pm Permalink

      Sure – completely fine Sadie. thanks for your comments! (I’ve seen them on a few pages)

  59. Fenil 6 October 2014 at 9:46 am Permalink

    I got a betta one month a go it has developed a fat belly and it is kept with gold fishes should I keep it different from them?

    • @BettaInfo 17 October 2014 at 8:40 pm Permalink

      Ok, it sounds like you are feeding it too much! It will get very sick (sounds like it already is).
      Please keep it seperate from your goldfish – more information here. They should not be eating the same food or have the same tank set up.
      Thanks! :)

  60. Lisa Nicole 9 October 2014 at 4:41 am Permalink

    Hey there ! I just got a female betta and I was wondering if it was a good idea to leave the two different tanks together or not? I want to breed the pair too.

  61. Bluebettalover 14 October 2014 at 4:02 pm Permalink

    Hi i think my male veil tale betta thinks im a female betta fish because every time i get close to the tank he will swim up to me and press out his gill flaps like he is showing off also thanks for the bubble nest info it was very helpful :)

  62. NicoleS 17 October 2014 at 9:38 pm Permalink

    Hi, I got my betta about a week ago and he has eaten like a little piggy every day. This morning when I fed him he didn’t eat. He just sat in a corner. I figured maybe he wasn’t hungry so I went to work. When I got home he still had not eaten but he had blown a bubble nest. I’m very happy that he will make his bubble nest but should I be worried about him not eating?

    Professor Bubblesworth is in a 2.5 gallon tank by himself. I hope he is happy :(

  63. KK 18 October 2014 at 7:21 pm Permalink

    I am thinking about getting a betta and putting it with other fish should I take any precations, such as feeding and what if he makes a bubble nest should I be worried

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