bleeding heart tetra male show natural behaviour, red spot side, rio negro endemic in driftwood with leaf litter biotope

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