1, directly put in the cylinder, planted in the sand or the pebbles pressure stability, etc.2, aquatic animals is special, no any pollution and damage to aquatic organisms;3, can provide places for nitrifying bacteria.Simulation of aquatic plants introduction: aquarium simulation aquatic plants are made with has no effect on water quality of the plastic.<br /></p> <br /></p><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/5552f92a2579e80e9e94ca14-1-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/5552f92a2579e80e9e94ca14-2-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/5552f92a2579e80e9e94ca14-3-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/5552f92a2579e80e9e94ca14-4-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/5552f92a2579e80e9e94ca14-5-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><p style="text-align: center;"><p style="text-align: center;"><p style="text-align: center;"><p style="text-align: center;"><p style="text-align: center;">