Schools of fish are not only a pleasure to watch, but for some species are absolutely necessary. Keeping only one fish that prefers to live in a school can be stressful and ultimately shorten the lifespan of the fish. Learn how and why fish school, and which species you should always keep in groups. Fish That School
Black Neon Tetra
Clown Loach
Silver Tip Tetra
Zebra Danio
Tetras
Photo © Jens Kuhfs
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