OASE Hel-X 13 Biomedia 25 l (moving filter bed) Algae scraper This extremely valuable blend has

This extremely valuable blend has been enriched with marine roe

In case of a higher demand for any of macronutrients

and nitrites

The AquaClear 20 Power Filter features a unique multi-stage filtration system that provides complete mechanical

Unlike many other test kits

OASE Hel-X 13 Biomedia 25 l (moving filter bed) Algae scraper This extremely valuable blend hasCharacteristic: The hel x 13 biomedia for the Bio master 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 13% extra surface area then previous Hel X Replace your biomedia only when completing a complete Tank restart as to not disturb the beneficial biological load Gives rapid breakdown of food