Aqua One Black Sponge Pads for Ocellaris 850 and 850UV 138s – 2 pack

Function -138s

The Aqua One 138s Blue sponge pad is designed solely to fit the new Ocellaris 850 and 850UV external canister filter. The 138s is a fine(35ppi) foam sponge. It acts to collect smaller particles of waste and also provides an excellent culture medium for essential aerobic filtration bacteria

Effect on Flow Rate

Because the 138s is constructed from quite fine sponge it will reduce the flow rate of your Ocellaris 850 and 850UV when blocked and dirty. Reduced filter flow rate can be catastrophic for aquarium water quality. The solution is thankfully simple – just rinse the 138w as required in a little aquarium water and be prepared to replace the sponge as required.

Lifespan

The 138s should last several months of average use and may be rinsed in a little aquarium water at filter clean out time (the dirty water should then be discarded). Older 138s sponge inserts tend to become blocked very easily because their cell structure is less resilient, for this reason we suggest replacing it every four to six months.

Pack size

Two 138s are provided per pack. Making a pack last between eight and twelve months. Heavily stocked aquariums may shorten this life span – do what is required to keep your Aqua One Ocellaris 850 and 850UV filtering effectively.

Use With

The Aqua One 138s Sponge Pad works best with the Aqua One 137w Polymer Wool Pad, the 137s black sponge pad and, of course, Aqua One’s Bionoodles 600g. Inserting a bag of Aqua One’s Advance Carbon 450g between the Aqua One 137w Polymer Wool Pad and 138s in the top filter tray can bring large benefits in terms of clearer, odour free aquarium water – well worth doing in our view.