Aquatic Arts Java Moss Mat - Live Aquarium Plant, 3.6 x 3.6 inch Mat 3.6 by 3.6 inch mat; some moss may be yellow or brown, this is normal it will recover within 2 weeks Grows along driftwood, rocks, and other surfaces; grows along rear glass for a plant backdrop effect Does not need special or high intensity lighting; can be kept in any freshwater aquarium Provides biofilm, hiding places, and security for the young when you place it in a breeding tank Comes with a 100 percent Live Arrival Guarantee