Tank Configuration
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Search our database of 197+ freshwater aquarium fish species
Popular searches: Guppy Neon Tetra Gourami Cichlid Betta Angelfish
Your Tank Stocking
Stocking Analysis
Bioload Status
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Compatibility
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Water Parameters
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Recommendations
- Configure your tank parameters above
Frequently Asked Questions
How do I calculate how many fish I can put in my tank?
Use our aquarium stocking calculator! Enter your tank size, length, and filter type. Our calculator analyzes bioload, fish compatibility, and water parameters to recommend optimal stocking levels for your freshwater aquarium.
What fish are compatible with each other?
Fish compatibility depends on temperament, water requirements, and tank size. Our database includes 197+ freshwater species with detailed compatibility analysis. Peaceful community fish like tetras, guppies, and corydoras typically work well together.
How does bioload calculation work?
Bioload measures the waste produced by your fish. Our calculator considers fish size, quantity, and waste production, then factors in your filter capacity to determine if your tank can handle the biological load safely.
Should I add plants to my aquarium?
Plants can benefit most aquariums by consuming nitrates and providing oxygen. However, some fish like cichlids may uproot plants. Our calculator provides plant setup recommendations based on your fish selection.
What tank size is best for beginners?
Larger tanks (20+ gallons) are more stable and forgiving for beginners. They provide more room for fish and easier water parameter management. Our calculator helps you choose appropriate fish for any tank size.