OASE Hel-X 13 Biomedia 25 l (moving filter bed) Algae scraper and nitrites

and nitrites

daily diet for koi and other pond fishes will provide them with the basic nutrition they require to live a long and healthy life

because the iron is already oxidised and no longer freely available in the water

Unlike many other test kits

OASE Hel-X 13 Biomedia 25 l (moving filter bed) Algae scraper and nitritesCharacteristic: 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