Axolotl in a dimly lit aquarium with plants

axolotl aquarium dimly lit plants underwater amphibian nature habitat exhibit species environment fauna observation serene peaceful marine habitat water biodiversity underwater world marine conservation underwater scenery water tank aquarium exhibit exotic unique gills dark mysterious nocturnal submerged amphibious tank setup axolotl behavior hidden tranquility lizard water lizard freshwater naturalistic gravel sand nocturnal behavior axolotl features gilled amphibian shadowed unique animal aquarium lighting green leaves closeup