Fish can hide and Pass through the hole and crannies within, No rot or any algae problems, aquarium simulation dry wood decorative rockery. It is vividly and color detailed to add lively and natural life to your tank.It is great to decorate your aquarium all the time with minimum responsibility and maintenance. This rockery is made from poly resin and makes an exciting ornament in any aquarium, Make your aquarium vividly ,add to natural color. This simulation aquarium rockery can not only decorate your aquarium but also provide fish with a comforting shelter. High imitation, delicate and realistic, Aquarium landscaping decorative ornaments, Change your aquarium into a beautiful scenery.