male of bleeding heart tetra shows its breeding colors ready to spawn, hyphessobrycon socolofi, freshwater fish, rio negro endemic

active adult amazonas animal aqua aquarium aquatic barcelos biotope blackwater bleeding breeding bright business care characidae clear colors cultivation cute decorative design dot driftwood dwarf eco ecology endemic fauna fin fish fishkeeping freshwater habitat heart hobby hyphessobrycon instinct its little live low macro male natural nature negro ornamental pet ready red rio shows side socolofi spawn species tank tetra threat underwater water