black tetra glofish breed, gymnocorymbus ternetzi, colorful blue adult active and healthy freshwater characin male fish

active adult animal aqua aquarium aquatic aquatrade background black blue blur breed breeding bright characidae characin clear closeup colorful decorative deep design dominant dwarf ecology exotic fauna fin fish fishkeeping fluorescent free freshwater friend friendly funny glo glofish glow gymnocorymbus healthy hobby instinct intellect live macro male mature natural nature pet petticoat plant side space tank ternetzi tetra timid underwater water weed