pencilfish male and female, nannostomus beckfordi red, brazilian ornamental blackwater fish from rio negro

adult america animal aqua aquarium aquatic background beckfordi biotope blackwater blurred brazil brazilian bright careful colourful copy decoration decorative depth design detail ecology endemic exotic fauna female field fish freshwater green habitat instastory instinct male nannostomus natural nature negro ornamental pencilfish protection red rio scape shallow south space spawning tank underwater water yellow