Try to add some plants to surround the hammock if your pet like to be . Plants make they feel more secure. The mesh is washable if someone decides to poop on it, you can buy special soap won' hurt your lizard or vinegar, but always make to rinse . 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, 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 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:Black Material:nylon size:33*33*48cm Package Contents: 2*Pet hammock Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.