How To Transfer Betta Fish From Cup To Tank: Pros And Cons

Last Updated: July 12, 2022 by Flora Gibbins

Have you bought a betta fish from your local fish store? Well, there’s a good chance that your new buddy is living in a cup or a clear plastic bag right now.

Now…

Most new fish owners start to panic after buying a pet fish since the slightest mistake can cause the fish to die.

In this guide, we’ll show you how to transfer betta fish from cup to tank without worrying about hurting it.

Can a Betta Fish Live in a Cup?

Keeping a betta fish in a cup for a small amount of time should be fine. However, it’s important that you transfer betta fish from a cup to a community tank as soon as possible.

Here’s why:

Cups Are Very Small

Since cups have limited capacities, they don’t provide enough water for pet fish to survive for a long time.

They Restrict Oxygen Flow

As a result, none of them has enough ventilation that allows for proper oxygen flow. Over time, this will hurt your new betta fish, and it’ll die if you wait long enough.

Limited Temperature Control

Since plastic cups contain a limited amount of water, the water temperature changes very quickly depending on the surrounding environment.

Acclimating Your Bettas to New Aquarium Water

When you come home from the pet store with a new female or male betta fish, the last thing you want to do is to simply dump the betta fish cup or bag into the aquarium and call it a day.

This is because your new betta fish may get shocked due to the water temperature difference between the cup and the aquarium. This will cause your betta to die or, in the best-case scenario, get stressed out. Stress can cause your newly introduced bettas to attack other fish in the community tank, which isn’t something you want to happen.

Unless you have a thermometer to measure the temperature of both mediums, throwing your betta directly into your community tank can be risky.

Allowing your new betta fish to slowly adjust to its new fish tank is essential for survival. Here are the acclimation steps for betta fish:

Let the Cup or Bag Float in the Tank

The best thing to do once you get your betta home is to let the cup or bag float in the tank for 10-15 minutes while ensuring that none of the water in the tank gets into the cup or bag.

This gives your betta time to adjust to the new water parameters. Heat transfer between the cup water and tank water will ensure a gradual change in temperature that your betta can tolerate much better than just throwing it into the community tank right away.

Safely Transfer Your Bettas to the New Aquarium

Now you’re probably thinking that the next step is to just dump the water and the betta into the tank from the cup. But no, that’s not how it works.

You can’t put the water in the cup into the tank since you don’t know the water quality. Some pet stores use unfiltered tap water to keep fish alive for a small amount of time, but that’s far from ideal.

Such a small amount of water can totally disrupt your aquarium’s system.

What you need to do is to transfer the betta fish only using your hands or a fishnet.

Acclimating Your Betta Fish Using the Drip Method

The drip method is yet another technique you can use to acclimate your fish. Here’s how to set it up:

• Put the open bag or cup in a large container
• Put the container next to your new tank
• Put an air stone in the container and attach it to an air pump
• Set up a makeshift siphon using an air valve and airline tubing
• Connect the container and the new tank with the tubing
• Let the water flow in the siphon while controlling the flow rate of the drip using the valve
• Continue dripping water until your water is 3x its original volume
• Check the water parameters in the container and the tank
• If values like pH level and water temperature are almost the same in the tank and the container, you can now transfer your betta fish safely to its new home
• Replace the water in the tank with dechlorinated water

This method is somewhat complicated and requires special equipment, but it’s very safe for your betta fish. You can tell if you’re doing everything right or not by tracking the time of the acclimation process. If the water flow rate is adequate, the whole thing shouldn’t take you more than 120 minutes.

In addition, make sure that you monitor your betta fish after the transfer to make sure that the acclimation process is successful. It’s also good practice to wash anything you intend to add to the aquarium with hot tap water before introducing it. These include substrates, decorations, and thermometers.

Ensuring That Your Bettas Are Adapted to the New Environment

Newly transferred bettas require time to adjust to their new habitat. Even if you safely transfer your bettas to their new home, you still need to observe their behavior whenever possible just to make sure that all is well.

For example, your betta fish may need a larger tank. Keeping bettas in a smaller tank isn’t recommended as this can raise their stress levels. Some of the common distress signs for most fish include dulled color, clamped fins, and unstable diets.

By moving your betta fish to a larger aquarium, you can reduce stress.

Fun Fact: Acclimation is the key to a safe transfer of your pet fish from its original container to its new fish tank. Learn the basics of doing this by reading our article, How To Transport A Betta Fish: Factors You Need To Know Now to get valuable hints and tips!

How Frequent Should You Change the Water in Your Betta Fish Tank?

There are no hard rules when it comes to how often you should change the water in your new betta tank. There are multiple variables that influence the ideal water-changing routine, such as the size of the tank, whether there’s a filter in place or not, and if there are any tank mates.

If you can’t tell for sure how often you need to change the water, aim for changing 25% of the water 4 times a month. It’s very important that you don’t change a huge amount of water all of a sudden since this could affect the parameters, like pH levels, ammonia levels, amount of good bacteria in the tank, and water hardness.

Ammonia poisoning, in particular, can be quite dangerous.

Do You Need a Filtration System for Your Betta Tank?

It’s not mandatory to use a filter for your water tank that contains female or male bettas. You can maintain healthy betta fish without using a fancy filtration setup. Nevertheless, we’d still recommend equipping your community tank with a filterto keep the tank clean and free of contaminants and debris. Not to mention, you’ll have to change the water less frequently.

On a side note, placing some aquatic plants in your betta tank is a good cheaper alternative to filters, thanks to their natural filtration properties.

What Kind of Fish Can Live With a Betta?

Bettas are territorial to some extent, but that doesn’t mean you can’t keep them with other species. It’s highly recommended that you keep it in a large tank if you choose to add tank mates from other fish species. Here’s a list of potential tank mates for betta fish:

• Bronze Corys
• Ember Tetras
• Nerite Snails
• Platies
• Harlequin Rasboras
• Dwarf Rasboras
• Pygmy Corys
• Cardinal Tetras
• Glass Catfish
• Chili Rasbora
• Dwarf Loach
• Lambchop Rasboras
• Zebra Danios
• Rummy Nose Tetras
• Endlers Livebearers

Nevertheless, we’d recommend approaching the introduction of  betta fish to new tank mates or vice versa with caution.

It’d help if you have a quarantine tank just in case things go wrong; you can move your betta pet fish to it until you sort things out.

Fun Fact: Buying your first pet betta fish needs serious considerations, especially from whom you will purchase your aqua buddy. Fret not. We’re here to assist you by providing you with our list of 8 Best Places To Buy Betta Fish Online (Top Sellers in 2022) to ensure that your purchase is worth your investment! They also render assistance in transferring your pet fish from cup to tank with lesser stress and minimal effort.

Frequently Asked Questions

How long should I wait to put my betta fish in the tank after I put the water conditioner?

Ideally, you should wait around 24 hours before adding betta fish to the new tank water.

After applying the conditioner to the fish tank water, you need to wait a while for its effects to kick in. Water conditioners remove heavy metals, chlorine, and chloramine from water, but for the best results, you need to wait 24 hours to ensure that all the unwanted contaminants are extracted and evaporated.

In addition, waiting for a day allows nitrogen to be changed to outgas.

How long can a betta stay in a cup filled with tap water?

There’s no standard timeframe within which a betta fish can survive in a cup. As a general rule of thumb, try to make the cup to tank transition within 48 hours.

What is the ideal water temperature for betta fish?

Betta fish are tropical fish, so the best temperature range to keep them happy and healthy is 75-85 degrees F away from direct sunlight. This is similar to the temperature range in their natural habitat.

Conclusion

Alright, so that was everything you needed to know about transferring your betta pet fish from a store cup or bag to its own tank.

Acclimating betta fish is important for it to gradually adjust to its brand new home and maintain a healthy life. So don’t skip the acclimation process!