young dwarf weatherfish explore leaf of water pineapple with barbels in search of food among green vegetation, european biotope

algae animal aqua aquaculture aquatic captive clear closeup cobitis coldwater conditions controlled curious current decorative ecology elodea endemic europe fauna fish fishkeeping flow free freshwater friendly gravel grey instinct juvenile lake lily loach local macro native natural nature ornamental plant pondweed protection river space specimen spined stream taenia tank temperate threat underwater water weed wild