Try to add some fake plants to surround the hammock if your pet like to be hidden. Plants make they feel more secure.The mesh is washable if someone decides to poop on it, you can buy special soap that won't hurt your lizard or use vinegar, but always make sure to rinse well.Soak the suction cups if they are not sticking to your sidewalls. If the hammock is dirty, you can wash it. Wipe the sucker and glass wall with clean water and sope, ensure them clean and free from dust before sticking the suction cups to the aquarium;Stick the suction cups to the aquarium;Tips:Soak the suction cups into hot water, if they are not sticking to your sidewalls. And stick it to your aquarium when the suction cups become hot;Exchange the suction cups when they become aging;Push the small bulge part of the suction cups.colour:BlackMaterial:nylonsize:33*33*48cmPackage Contents:2*Pet hammockOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.