How to Introduce A New Fish into Your Aquarium

Setting Up New Aquarium

Having set up your aquarium and everything is in order, the next thing to do is place fish in your new tank. The number fish you place in the tank will depend on its size and the fish species. The tricky part comes in selecting the fish species. Much like human beings, fish have their own distinct personalities and behaviors. The manner in which one fish acts or reacts is completely different from the way another fish may behave.

Some fish can cohabit, others cannot because they are overly territorial. So you need to have ample information of the different fish species you want to put in your tank before you actually put them there. Otherwise, it could end up being a waste of time and money, if some of the weaker fish die.

How to correctly introduce new fish

Photo: Pixabay

Before placing new fish into your new aquarium, make sure that you have created an ample environment to ensure their survival. Double check everything if you have to, to ensure that the key components of the aquarium are working properly.

Once that is done, you can go ahead and introduce your new fish to your tank. If you already have a tank with fish in it and you want to add new fish, make sure that they can cohabit.  Otherwise, the new fish may feel stressed out by the existing fish and this can lead to disease, which may affect all the fish in the aquarium.

This is why aquarium experts recommend that marine aquariums are equipped with a UV sterilizer to help reduce the risk of disease.

After you have followed the New Arrival Acclimation Guide, which offers step-by-step instructions on how to introduce fish into your tank, you can use the following tips to make the transition a lot easier.

  • Do not use any other tank other than a quarantine tank if you want to prevent the spread of disease from your new fish.
  • Create sheltering areas in your tank by placing plants or rocks where your fish can hide. This can help reduce stress and aggression in your aquarium.
  • Create a healthy environment by maintaining optimal water conditions.
  • Avoid adding just one fish to the aquarium. This will minimize the chances of the new fish being harassed.
  • Before introducing new fish, make sure that the existing fish have already been fed. This will help prevent aggression towards the new kids on the block.
  • Add and/or rearrange decorations in the tank. This will offer some distraction and create new territories. By doing so, you level the playing field so to speak such that even the new fish have a chance of claiming some territory.

Watch video about how to introduce new fish to your tank

Final Thoughts

Placing new fish in an aquarium that has exiting fish is a delicate process. You want to ensure a smooth transition to minimize the new fish from feeling stressed out. You also need to consider that the existing fish may feel a bit territorial when new tank-mates are introduced into the tank. So use the tips provided above to make things easier for everyone.

Read more about fish care and find out essential information for aquarium hobbyist. If you have any questions, please post them below.

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