Superfish Flexi Diffuser Superfish Flexi Diffuser – Flexible diffusers which can be bent round driftwood, stones or also in corners. Providing air bubbles wherever you want in the aquarium. Diffuser’s available: 12.5 cm 30 cm 60 cm SuperFish surely makes your aquarium hobby successful, complete with aquariums, filters and filter media, heating, lighting, ventilation and useful accessories. It is our goal to make your aquarium hobby successful and also affordable. Click here to also browse a wider range of Pumps & Filtration products we stock!