JBJ 45 Biotope/JBJ RF 45 ClearView LidsThis lid will fit the 45 Biotope and the Rimless Flat ClearView Lids was founded to create sleek, aesthetically pleasing, durable, alternative lid solutions for keeping your finned friends safely in your aquarium. With 3 lid styles to choose from and a wide variety of available customization options, we're certain to have the right solution to fit the individual needs, tastes, and budget of hobbyists everywhere. Choose your lid style above, then click