Keep a lid on your aquarium, and protect your fish from other pets and unwanted debris. Designed for use with the Aqua One Reflex 13 Aquarium Kit, this solid glass lid helps minimize water evaporation while preventing daring escapes! It also puts a protective layer between your light fixture and aquarium water. It is sized for a perfect fit, and includes durable plastic fastening clips to keep it securely in place. Easy to install and clean!