Alfagrog Filter Media E40 15L Pure Aquatics 500 Marine Stretchable

Stretchable

mount the blocks beneath the water surface in the sump in a very low flow area

Drain clamp

and significantly inhibited coral calcification

Anaerobic denitrifying bacteria will then colonize the internal surfaces of the brick and you will get both nitrification on the surface and denitrification in the internal parts

Alfagrog Filter Media E40 15L Pure Aquatics 500 Marine StretchableWhat is Alfagrog? Alfagrog is a porous foamed ceramic material, which is lightweight, strong and inert. It's high surface area makes it the natural choice for colonisation by micro organisms in biological filtration systems resulting in cleaner water. Benefits of Alfagrog over other filter media: Extremely high surface area Highly porous Inert, pH neutral Lightweight Available worldwide Economical 40mm The Alfagrog range of porous ceramic filter media