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Fish for smaller aquariums (on file)

43 species fit a 60L minimum and stay under 10cm adult, with no predatory flag set.

Each species here has a small enough minimum volume and a small enough adult size to live in a nano tank. That does not make a nano tank a community tank. The same 60 L still has one filter, one heater, one volume of oxygen, and one footprint to fight over. One schooling species, or one pair of a slightly larger species, is usually as far as a 60 L should go.

The instinct in a small tank is to add variety. The right move is the opposite. Pick one species you genuinely want to watch, stock its proper group, and let the empty look settle on you for a few weeks before deciding whether to add a single second species. Most failed nano tanks are stocked the wrong way, not too small for what is in them.

Every row is a real profile in the live library; filters are field-driven, not hand-curated blurbs.

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