pencilfish, popular and easy to keep pet in biotope aquarium, dim low light with brown tannin stained water, ornamental

adult amazonia amazonian america animal aqua aquaculture aquascape aquatic background beckfordi beginner blurred brazilian business careful characin closeup colourful conditions controlled copy curious decorative detail ecology endemic exotic farming fauna fish fishery fishkeeping free freshwater golden habitat hard hobby ichthyology instinct keep lebiasinidae low nannostomus nature pencil planted red relax south space tank trade understanding underwater vulnerable water yellow