Saim Glowing Effect Artificial Plastic Plant for Aquarium Decor Fish Tank Ornament This artificial plant is made of non-toxic material to make your tank glowing under aquarium PURPLE or BLUE lighting . This aquarium ornament decor is enhancing visual appeal and to provide shelter for your fish. Glowing effect requires aquarium PURPLE or BLUE lighting for the fluorescent glow highlight. Safe for fish and good for fresh or salt water environments The item measures about: 3.8"(L)X2.4"(W)X5.3"(H)