wild caught spined loach, weather forecasting fish, dwarf coldwater species in european temperate biotope aqua

adult animal aqua aquaculture aquarium aquatic atmospheric attentive barbel barometer biotic biotope bottom burying captive caught change clear close closeup cobitis coldwater conditions controlled cute decorative dig digging dwarf ecology europe european explore fauna find fish fishkeeping flow forecasting free freshwater friendly grey hard head instinct loach local macro native natural nature ornamental pet portrait pressure protection sand space species specimen spined stream substrate taenia tank temperate threat underwater unusual water weather weatherfish wild