adult pencilfish play, pet in biotope , dim light with brown tannin stained water, ornamental blackwater fish

acidic adult amazonia amazonian america animal aqua aquarium aquascape aquatic background basin beauty beckfordi biotope black blackwater brazilian breeding brown captive careful characin colourful conditions controlled copy decorative design detail dim ecology endemic fauna fish fishkeeping free freshwater golden habitat hobby instinct lebiasinidae light line look low macro nannostomus natural nature negro ornamental pair pencil pencilfish pet play protection red rio south space spawn stained tank tannin underwater vulnerable water white widespread wild yellow