Aquarium Stocking Calculator
See how many inches of fish your freshwater tank can safely hold.
Result
Recommended fish length
20 inches total
Example stocking
10 neon tetras (1"), 4 cory (2"), 1 gourami (3")
Max single fish
≈ 1/4 of total gallons for medium fish
Tip
Add fish slowly (1-2 per week) to let bacteria catch up
About this tool
Pick your tank volume, filtration level, and live-plant density. Get the recommended fish inches, an example stocking list (tetras, gourami, cory, etc.), and a warning if you're overstocked. Built for r/Aquariums and r/PlantedTank 'how many fish can I keep' threads.
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