Stocking Ideas
Aquarium stocking ideas by tank size
Pick your tank size below. Each hub lists curated stockings and every fish whose minimum tank requirement fits, grouped by water type. All recommendations are checked against the same rules the tank builder uses.
Don't see your size?
These are the tank sizes retail actually sells. If your tank is a non-standard size, pick the nearest canonical size that's equal to or smaller than yours and treat the results as a floor — a 25gal keeper can safely use the 20gal page, a 60gal keeper can pull from the 55gal page.