royal panaque in closeup, popular suckermouth catfish in aquaculture, tropical fish from the amazon basin of america

amazon america american animal animals aquaculture aquarium aquatic armored basin bottom catfish catfishes cleaner cleaning closeup dweller dwellers dwelling exotic fish fishes fresh freshwater ichthyology lake loricariidae mouth nigrolineatus orinoco panaque pet pets plec pleco popular portrait river royal specie species sucker suckermouth tropical underwater water zoology