adult bleeding heart tetra, well known characin fish in planted blackwater biotope aquarium, endemic of rio negro

acidic adult amazonas animal aqua aquarium aquascape aquatic barcelos basin beauty biotope blackwater bleeding bright business captive care caught characidae characin clear conditions controlled cultivation curious cute decorative design dot dwarf eco ecology endemic fauna female fin fish fishkeeping freshwater habitat heart hobby hyphessobrycon instinct known little low macro male natural nature negro ornamental pet planted red rio side socolofi species tank tannin tetra threat underwater water well wild young