golden pencil fish search for food on oak root, aquatic plants in beautiful freshwater ryoboku detail, amano style

algae alternanthera aquaculture aquafarming aquarium aquascape beckfordi behaviour blur characin clearwater closeup conditions controlled cultivation decorative depth driftwood dubyana easy ecology ecosystem erectus exotic fishkeeping flora free habitat hard hardscape healthy hobby illustration java lebiasinidae moss nannostomus nature ornamental pencilfish pet photosynthesis pogostemon popular reineckii relax shop space studio texture trimming tropical understanding underwater vegetation vesicularia vulnerable water weed work