The Beetle Diffuser has a wider diffusion filter so more CO2 can be dispersed within your aquarium. The uniquely designed Beetle sits conveniently on the wall of your tank; for larger tanks, these diffusers can be placed in multiples. We recommend Ø30 for tanks 60-90cm in size, Ø40 for 90-120cm and Ø50 for 120-180cm.
