bleeding heart tetra, bright neon glowing colors, active rio negro endemic characin fish in blackwater style biotope planted aqua

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