Encyclopaedia
Freshwater fish
Freshwater species for community aquariums, river biotopes, and planted tanks.
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Tank position and role
Choose the main zone or behavior, then open the filtered list.
910SurfaceSpecies that use the upper tank and water surface.690MidwaterVisible mid-column fish for movement and color.730BottomSubstrate, cave, and lower-tank inhabitants.654SchoolSpecies kept in higher numbers for natural movement.93GroupSpecies managed in small compatible groups.56Pair / trio / haremFish with tighter social pairing or group ratios.429Solo / centerpieceSpecies used as a main presence or single focus.106Nano tankSmall fish for compact tanks and lighter stocking.








