Generally speaking, the turtle tank is not too high, and the water for raising turtles is not that deep. It's no use being too high. Moreover, if the glass jar is not too high, the tortoise can't get the sun. Raising turtles is mainly about appreciating the turtle's back, and most fish still appreciate fish.

A large class of cryptoflowering plants, including ferns, Lycopodium and Equisetum. Usually herbs, stems with vascular bundles, small leaves and spore reproduction. Sexual and asexual generations of this plant alternated in ancient times. The coal used today was buried underground by this plant thousands of years ago.