Home/Livestock

🐠 Aquarium Livestock Guide

Browse fish, corals, and invertebrates for your reef or freshwater aquarium. Use our compatibility checker to make sure everything lives together peacefully before you buy.

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Fish Guide
Reef and freshwater fish with tank size requirements, temperament, diet, and reef safe ratings.
Reef & Freshwater
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Coral Guide
SPS, LPS, and soft corals with lighting, flow, placement, and difficulty ratings.
Reef Only
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Invertebrates
Shrimp, snails, crabs, urchins, and cleanup crew for reef and freshwater tanks.
Reef & Freshwater
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Compatibility Checker
Check if your fish, corals, and invertebrates are compatible before you buy. Avoid aggression, chemical warfare, and predation.
Free Tool

Building a Compatible Aquarium Community

One of the biggest mistakes new aquarists make is adding incompatible species to the same tank. Aggressive fish can stress or kill peaceful tankmates. Certain corals wage chemical warfare on their neighbors through allelopathy. Some invertebrates that seem harmless will eat your prized corals overnight.

Our livestock guides provide detailed compatibility information for every species, including reef safe ratings, temperament scores, and specific incompatibilities. Use the compatibility checker to test your planned livestock list before spending money — it checks for aggression conflicts, tank size issues, bioload problems, and coral chemical warfare.

Related Tools

Plan your equipment with our Equipment Planner, calculate tank volume with the Tank Volume Calculator, or figure out water change schedules with the Water Change Calculator.