Phosban: Phosphate Adsorption Media 454 g Aquarium Lighting Xaqua INOUT is installed with

Xaqua INOUT is installed with holes drilled in the side or the back of the

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Use it to raise the calcium concentration when the alkalinity level is too high and the calcium level is low

for maximum efficiency and easy maintenance of the

Phosban: Phosphate Adsorption Media 454 g Aquarium Lighting Xaqua INOUT is installed withPhosBan Synthetic ferric oxide hydroxide granules with an extremely high capacity for adsorbing phosphate from saltwater and freshwater. Also adsorbs silicate, and does not release adsorbed substances. Recommended by Julian Sprung for long lasting and easy control of phosphate levels on a permanent basis. Bulk packing available.