Aquarium Stocking Calculator
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Tank Size (gallons)
Average Adult Fish Size
Small (1-2 inches — tetras, rasboras)
Medium (2-4 inches — mollies, gouramis)
Large (4-8 inches — angelfish, cichlids)
Very Large (8+ inches — oscars, plecos)
Filtration Level
Basic (included filter)
Good (canister or HOB rated for tank)
Excellent (oversized filter + live plants)
Water Type
Freshwater
Saltwater / Reef
Calculate
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Maximum Fish Count
Comfortable Stocking (80%)
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Stocking Rule Applied
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Recommended Water Changes
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