rio negro endemic bleeding heart tetra male fish in neon glow breeding colors, dwarf pencilfish, driftwood biotope aqua

adult amazonas animal aqua aquascape aquatic barcelos beckfordi blackwater bright business care characidae characin conditions controlled cultivation decorative demanding detail dot dwarf ecology ecosystem exotic farming fauna fish fishery fishkeeping free freshwater golden habitat hobby hyphessobrycon ichthyology instinct lebiasinidae low macro nannostomus nano ornamental pencil pet piaba project red side socolofi space species tank threat tropical underwater vulnerable wildlife