Atlantic Oase Add. Pack Hel-X 13 Mm 20L Universal Rock Edge Rocks which maximizes the biological filtration

which maximizes the biological filtration process

An excellent choice for pond and water garden aeration since they actually produce more circulation and water movement

Product Code 8851-0904 / 8851-1204 / 8851-2204 / 8851-5704 Material Glazed Terra Cotta Dimensions 21"W x 19

Plate: ALPL6225 (rectangle)

and fading for ten years

Atlantic Oase Add. Pack Hel-X 13 Mm 20L Universal Rock Edge Rocks which maximizes the biological filtrationBiological filtration by colonies of beneficial bacteria remove toxic ammonia, ammonium and nitrites. Hel X Bio media has a huge ratio of protected inner surface versus exposed outer surface so the agitation caused by the turbulent water does not damage the bacterial colonies inside the media. This keeps colonies clean and active without a loss of decomposition capacity. Hel X 13 provides the perfect substrate for bacteria in ProfiClear Premium