There are many holes on the resin tree driftwood fish tank decor, provides shelter, hiding spots, entertainment venues for the fish. The aquarium cave is exquisitely crafted and carefully treated, imitating tree trunks with great detail to add underwater beauty to your aquarium. The aquarium ornament has a flat base, will sit stably on tank bottom, no floating over. Having three types optional of different size. Aquarium decorations is made of high quality, non-toxic, harmless and resin material, safe for all aquariums and fish. Can be put in fresh water and salt water tank. We strive to provide you with high quality and convenient service. You are welcome to us if you have any problem about our product, we will give you a satisfactory reply. See more product details