How to Know Which Fish to Put Together in a Tank

It can be confusing when you cannot figure out which fish will be compatible with that fish. You don't want to mix the wrong freshwater fish together and risk nasty confrontations that will leave your fish dead. Make sure you buy the right fish and place them accordingly by planning ahead of time.

Steps

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    Most freshwater "community" fish can be together such as tetras, danios, guppies, mollies, platies, rasboras, corys, swordtails, with angelfish, and Dwarf cichlids (not African cichlids). Fortunately, they all eat the same food, such as any tropical flakes or pellets. Frozen bloodworms and mini shrimp are good as well.
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    Don't put female and male live bearers together as they will breed, unless you want fry (baby fish).
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    Tiger Barbs are aggressive, so they might beat others up that are in the tank. This can be avoided by keeping a school of 6 or more.
    • Although Tiger barbs can be aggressive, most other barbs like Cherry Barbs are peaceful animals.
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    Schooling fish should be kept in schools (6 or more) of each species. They will be much happier this way.
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    It doesn't matter what age or size community fish are; they will flow nicely together, as long as you control quantity.
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    There is a whole other group of freshwater fish, called aggressive. Fish in this group are: Tiger barbs, many cichlids, some gouramis, sharks, and eels. These fish shouldn't really ever be put in with community fish without attention, caution and care on your part.. Particularly the slow moving ones with long tails. They will nip their tails and fins off, and often times kill them easily.
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    Be careful when placing bettas in a community tank. They may be aggressive to other fish, especially those with long fins and other bettas. Make sure you do research before considering it. Two male bettas can not be put together unless the tank is divided. Use caution when putting them with other fish.

Tips

  • Rule of thumb, if a fish fits into another fish's mouth, they are not suitable tank mates.
  • If you don't know if you can put a fish in with another, it's best to do some research.
  • Ask the worker in the pet store which fish they would keep together, then do research to confirm the information.
  • Never keep male Bettas together as they will fight until one dies.The only acceptable time to keep two Bettas together is if they are both female
  • Tetras and angels don't really get on unless you give the angels bloodworms and brine shrimp.
  • Generally keep in schools of 4 or more. If your tank can't fit so many fish, trim down the species that you plan to keep in your community.
  • If you know they are going to fight for any reason, don't make them tank mates.

Warnings

  • ALWAYS research fish species before you buy them - the store owners often give out false information.
  • Never put small fish with big fish. If you mix small fry (baby fish) with lurking predators like bettas, you’ll wind up with plump predators. Remember that MANY fish are predators.

Article Info

Categories: Fish