Key Features Tray for the 60L Halo Aquarium, for use with the MCR Lids Easy to fit trays For use in new MCR Halo Lids Helps to stop condensation from collecting around the MCR light and the inner lid. Diameter: 172mm x Depth: 25mm The Oase BiOrb Replacement Halo 60 Litre Condensation Trays are an essential part of any upgrade when changing from Standard or Moonlight Lids to the new MCR Lids. While the Lids themselves have all the parts you need, a Condensation Tray is a vital part in order to keep the Halo aquarium running smoothly. The tray sits inside the top lip of the Halo tank and forms part of the Lid and light system. From there it is designed to catch any condensation forming in the lid from connecting with the MCR light, the inner lid and running down the inside of the tank. Any droplets formed collect in the small dome of the tray and can be cleaned and removed easily. The trays are easy to fit, with no complicated set up and are designed to be used when a LED and Moonlight