Oase Hel-X 13 BioMedia oase pre filter foam For optimum biofilter performance use

For optimum biofilter performance use 1 capful for each 80 L (20 US gallons) once a month or with each water change and whenever introducing new fish or whenever medicating an aquarium

Filters 383 GPH and is rated for tanks up to 100 gallons

Moisture …………

Replaces the original impeller in your Cascade 150 canister filter

Advanced gravity shut off feature

Oase Hel-X 13 BioMedia oase pre filter foam For optimum biofilter performance useThe Hel X 13 BioMedia for the BioMaster 250, 350, or 600 includes a replacement BioMedia allotment Includes a large surface area across this suspending media form which is ideal for biological filtration Allotments contains 0. 3 gallons of BioMedia Replace your Hel X filter media only when completing a complete tank restart as to not disturb the beneficial biological load