How many fish can you keep?

I can't keep any fish because I'm a language model! I exist in the digital world and don't have a physical body.

If you're asking about how many fish you can keep in an aquarium, that depends on many factors, including:

* Tank size: The larger the tank, the more fish you can safely keep.

* Fish species: Different fish have different needs for space, water conditions, and compatibility with other fish.

* Filtration: A good filtration system is essential for keeping fish healthy.

* Water changes: Regular water changes are important to maintain good water quality.

It's best to research the specific needs of the fish you're interested in and consult with a knowledgeable fish expert before purchasing your fish.