How do I acclimate a betta fish?

In this post, we will answer the question “How do I acclimate a betta fish?”. We will also discuss some manner to guarantee better acclimation.  

How do I acclimate a betta fish?

Check for adequate pH and temperature, at the very least. Bettas are particularly sensitive to changes in their surroundings, and any abrupt changes in water parameters or temperature could put them under a great deal of stress. Stress causes shock, increases illness susceptibility, and can even result in death.

If you purchased your betta from a pet store, it will most likely have arrived in a plastic cup or bag to keep it safe. Bumpy roads and weather variations can make even a routine vehicle ride uncomfortable. Avoid making unnecessary stops on your way home, and bring a box if feasible. Alternatively, a cardboard pet container can be utilized to carry your betta in the event of forgetfulness. 

Only a little volume of water is kept warm by using disposable plastic glasses, and the temperature of that water might fluctuate dramatically. This issue can be alleviated by encircling the glass or container with a box with a lid and some cleaned linen or an old t-shirt that has been laundered.

What is acclimation?

The process of gradually introducing the betta to the aquarium from its shipping bag or container is known as acclimation. This allows it to adjust to the changing water temperature and conditions gradually.

Water switch acclimation 

• Check the water quality in the new tank to ensure that it is steady and within the parameters that betta fish prefer; 

• Remove the transfer cup’s cover (or open the transport bag). 

• To alleviate stress, keep the lights dim during the acclimatization period. 

• If your betta arrived in a cup, place it in the new aquarium and allow it to float there.

• Create an edge by rolling open the top of the bag (if your betta arrived in one). The bag will float without tipping as a result of this. 

• Every 15 minutes, fill the cup/bag with 12 cups of tank water from the faucet. The water levels in the transfer cup and the water parameters in the new tank will eventually become equal as a result of this approach.

• Allow 30-60 minutes for your betta to become acclimated to the new tank, based on how variable the water quality is between the container and tank. 

• Transfer the betta fish to the new aquarium with a net or a clean cup, making sure not to pour the water from the transferring glass into the new habitat.

• Keep an eye on your new pet fish to make sure it isn’t showing any indications of illness or distress.

How to acclimate a new betta fish?

Following the completion of the aforementioned stages, you are now prepared to begin testing, acclimating, and moving your betta fish to their new tank. Betta fish require a pH of 6-7, and readings may be obtained using basic test kits. The temperature of the water in the tank must be maintained at around 75 and 81 ° F due to the fact that betta fish are considered tropical fish. If your community tank is significantly smaller due to the needs of other species, a betta fish is generally not the best choice.

Acclimation Instructions:

1. Using your plastic bag, cup, or quarantine tank, record the data of the pH and water temperature.

2. In the tank in which your new betta will be introduced, take a pH and temperature reading of the water.

3. Check your recorded measurements against each other to see if they match. If they do, your betta can now be introduced to its new home (very unlikely). Step four will be taken if they don’t comply. 

4. Float the plastic container or glass in the tank until it reaches the surface. As a result, the water in the tank will be able to completely surround the cup or bag and reach a thermal balance. This should take about 15-20 minutes, but if you started with significantly different readings, it could take considerably longer (45+ minutes). 

5. Every 5 minutes, pour a tiny quantity of the new tank’s aquarium into the glass’ hole or into an open bag to maintain a comparable pH level in both containers. This will gradually raise or lower the pH, letting your betta acclimatize to it rather than abruptly. 

6. Allow your betta to swim into its new home once the acclimation phase is complete. Avoid pouring the entire contents of the cup or bag into the tank.

How much time should you wait before adding betta fish to a new tank?

If your betta fish has a permanent habitation, the appropriate response will be decided by the placement of that residence. If your betta will be transferred to a new (cycled) tank, you may begin acclimating your new pet fish to the new tank as soon as possible by using one of the procedures outlined in the previous section. If you intend to maintain your betta in a communal tank, it is imperative that you first acclimate it to a quarantine tank. 

Before introducing a new fish to a community tank, it’s best to quarantine it for two to four weeks. This is done in order to prevent your new betta from bringing illnesses or parasites that might put all of your other fish at danger.

Store-bought fish can transmit illnesses or parasites without showing any evident symptoms of illness. By isolating a recent addition to your community tank, you’re not only safeguarding the current fish in the tank, but you’re also making it simpler to rehabilitate a sick betta fish.

What is the best way to introduce a new betta fish to a communal tank?

First and foremost, you should examine all of the fish species (and individuals) that you currently have in your community tank. Tank compatibility may make or ruin a transfer of a large number of tanks.

Before purchasing a betta fish, be sure there’s enough room in your communal tank for one. They are territorial freshwater fish that require a large area to call their home. 

There are some fish that betta fish get along with, as well as a few that you should avoid keeping in the same tank as them:

Quarantine for 2-4 weeks

Initially, place your new betta fish in a quarantine tank that has been cycled. You’ll be able to keep a better eye on it and see early signs of sickness or parasite infestations. In addition, it makes it simpler to rehabilitate a sick betta since it decreases the likelihood of illnesses propagating throughout your communal aquarium.

Allow the betta to become acclimated to your communal tank

When transferring your betta from the quarantine tank to the community tank, acclimate it to the water conditions in the community tank. Even a little bit of abrupt changes in water parameters can be harmful to your new betta fish’s health.

Put your betta into the community tank

Using a net or clean cup, carefully move your betta into the tank once it has been acclimated. Make sure there are a lot of shrubs or ornaments for it to hide among to avoid being discovered.

While the betta settles in, offer some food to keep tank mates occupied

Fish in a communal tank will check a new tank mate out of interest when they are introduced. Due to the fact that betta fish are naturally possessive and hostile, the focus they are receiving, along with the stress of the recent transfer, might cause them to become overwhelmed.

Keep an eye on your betta to make sure it isn’t being bullied

Check to see whether your new betta is being bullied or tormented. 

If you have a shared tank, there is only much more you can do to avoid the fish from intruding on one other’s area. However, mistreating a recently transplanted betta can be lethal to your new pet fish.

Understand how bettas behave in terms of territoriality and aggression

A betta fish’s regular (and healthy) behaviours include flaring to demonstrate dominance and protecting a region it swiftly redeems after settling into a community aquarium.

During this first showdown, try not to get too worked up. Having a possessive/hostile fish like a betta in the aquarium has caused your fish to acclimatize to the changed hierarchy and limitations that have resulted.

It is recommended that you transfer your new betta if it is interfering with other fish in your shared tank

If your new betta is housed in a community tank with other appropriate fish species, but you detect obvious signs of bullying after the initial back-and-forth, it may be necessary to remove your betta from the tank to prevent further harassment. Bettas aren’t all created equal, and some perform better on their own.


In this post, we answered the question “How do I acclimate a betta fish?”. We also discussed some manners to guarantee better acclimation.  

If you have any questions or concerns, please let us know in the comments section below!

Frequently Asked Questions (FAQs): How do I acclimate a betta fish?

How long does it take for bettas to become used to their different environment? 

It may take 30-60 minutes to adapt your betta, depending on how significantly different the water levels are between the container and the new aquarium. Transfer the betta fish to the new tank with a net or a clean cup, being careful not to spill any of the water from the transfer glass into the new tank. 

After placing the conditioner in the aquarium, how long do I have to wait until I can put my betta fish in it?

I prefer to wait 24 hours before introducing a betta to a new aquarium. There are two reasons why you should hold off. To enable the water’s chlorine to dissipate. Chlorine, chloramine, and heavy metals are easily removed from your fish tank with water conditioners. 

Is it possible to maintain betta fish in a cup for an extended period of time?

Bettas are tropical fish, therefore having a sufficient heating system is also a good idea. It is possible for them to become ill if they are kept in a container for more than 48 hours due to poor water quality, cooler temperatures, and distress. 

What happens if you don’t give the fish time to adjust?

The ability of a fish to regulate the salt-to-water ratio in its body is known as osmoregulation. Osmotic Shock is caused by an abrupt change in salinity, and it usually results in death within 2-3 days. When fish are not adequately acclimated, osmotic shock is one of the most common causes of death. 

What do betta fish prefer to have around when they’re in their tank?

Because bettas are territorial and do not get along with other fish of the same species, you may keep your betta entertained with toys, plants, and other aquarium-friendly objects. In addition to lounging on leaves and hiding under logs, Bettas also like throwing balls about.

Is it possible to place fish in a new tank on the same day? 

If you add the correct bacteria and the manufacturer says it’s okay, you can introduce fish as soon as the tank water is dechlorinated and at room temperature. However, for the best (safe) outcomes, begin the Fishless Cycle on the day the water is dechlorinated and brought to temperature.


How To Put A Betta Fish In A New Tank –

Betta Fish Acclimation.

How To Transfer Betta Fish From Cup To Tank – All You Need To Know. 2021.