congo tetra, dominant male of popular aquatrade ornamental species, endemic of african congo river basin, characin

adult africa african animal aqua aquaria aquarium aquascape aquatic aquatrade background basin blue blurred bright careful characin clearwater colorful conditions congo controlled copy cyan dark decoration decorative design dominant dwarf ecology endemic exotic fauna fern fish fishkeeping free freshwater habitat ichthyology instinct interruptus male nano natural nature ornamental pet phenacogrammus planted popular protection rainbow riccia river side space species tank tetra timid underwater vegetation view vulnerable water weed yellow