Freshwater Fish Care and Breeding
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How to Choose Great Fish for Your Freshwater Aquarium
Choosing freshwater aquarium fish isn’t just about picking the most colorful species at your local fish store. The best fish for your tank are the ones that can…
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How to Acclimate Fish to a New Aquarium
Moving fish into a new aquarium looks simple enough — float the bag, open it, and let them swim out. In reality, that short transition is one of…
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How to Set Up a Quarantine Fish Tank
A quarantine fish tank is one of the most useful pieces of equipment a freshwater aquarist can own. It gives new fish a quiet place to recover from…
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A Guide to Freshwater Aquarium Fish Behavior
Freshwater aquarium fish behavior is one of the most useful tools an aquarist has. Fish cannot tell you when a group is too small, a tankmate is too…
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Freshwater Invertebrate Anatomy and Physiology
Freshwater aquarium invertebrates look simple at first glance, but their bodies are remarkably specialized for feeding, moving, breathing, molting, and surviving in water that constantly tries to dilute…
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Freshwater Fish Anatomy and Physiology
Freshwater fish anatomy and physiology explain almost everything you observe in the tank: how a fish swims, why it prefers a certain current, what it eats, and why…
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How to Breed Freshwater Aquarium Fish
Breeding freshwater aquarium fish turns a display tank into a living nursery. It teaches you how fish communicate, choose mates, protect eggs, and grow from nearly invisible fry…