FishTankFish finder: which fish fit my tank?
Tell it your tank size and water temperature, and it lists every common freshwater fish that fits, with its adult size, group size and a link to its care guide. Then send your picks straight to the stocking calculator.
Want every plan in one printable? Stocking Plans by Tank Size has 41 checked setups for 5 to 75 gallon tanks, 32 fish care cards and a plan-your-own worksheet. Get the plans for $7
How the fish finder works
- Tank size hides fish whose minimum tank is bigger than yours. The minimum allows for adult size, swimming room and the group size they need.
- Temperature hides fish that can't live comfortably at that temperature. Most community tanks sit at 76–78°F. See the aquarium temperature guide.
- Must be safe with hides fish that eat small fish and shrimp, or nip long fins.
- A fish fitting on its own doesn't mean a mix of them fits. Check your full list in the stocking calculator, which adds up the load and checks tankmates.
Want ready-made plans? Your First Aquarium includes care cards for 15 beginner fish and stocking plans for 10, 20 and 29 gallon tanks. Get the guide for $12
Related: Fish stocking calculator · Freshwater fish care sheets · Stocking ideas by tank size · Fish compatibility checker