bleeding heart tetra, hyphessobrycon socolofi, popular ornamental blackwater wild fish from rio negro

acidic active adult amazonas animal aqua aquaculture aquarium background biotope black blackwater bleeding breed breeding bright careful characidae characin clear coloration colorful courtship decorative driftwood dwarf ecology endangered endemic fauna female fish fishkeeping freshwater habitat heart hobby hyphessobrycon instinct macro male nature negro ornamental plant popular protection red rio smart socolofi species specimen tank tannin tetra threat timid underwater vulnerable water wild