adult ninespine stickleback, tiny wild speices show natural behaviour relaxing in driftwood on sand bottom of temperate biotope

adult algae animal aqua aquadesign aquarium aquatic behaviour biotope bottom clear closeup coldwater creature current dof driftwood ecology europe fauna fish fishkeeping free freshwater gasterosteidae gravel grey habitat ichthyology inspiration instinct local macro native natural nature ninespine ornamental plant protection pungitius relaxed relaxing river sand shallow show shy space speices spine stickleback tank temperate threat tiny ukraine underwater vegetation vulnerable water weed widespread wild