Which fish are best for a home aquarium?
Set up the aquarium first
A common beginner mistake is buying fish before preparing a suitable aquarium. Research the needs of the species you want, set up the equipment and establish suitable conditions before adding animals.
What to consider
- adult size;
- compatibility with other fish;
- water and temperature requirements;
- aquarium size and layout;
- feeding and behaviour.
Not every attractive fish belongs in a community aquarium. Some species do better in groups, while others may be territorial or unsuitable as tank mates. Avoid overcrowding and sudden changes in the aquarium environment.
If fish become unusually inactive, stop eating or develop visible changes, seek advice from an aquatic-animal specialist or veterinarian experienced with fish. For rare or exotic species, check their origin and available documents before buying. Petty's directory can help you find aquarium shops and specialists.