Description: Poly fiber fine phosphate pads are a media that can be used chemical filtration allowing water passing through the pad and drawing phosphates from the water. Poly fiber fine phosphate pads are a media that can be used chemical filtration allowing water passing through the pad and drawing phosphates from the water. The sheet comes in 30 x 30cm sheet and can be cut to suit most filter sizes making this a cheap and effective option. Can be used in either fresh or saltwater tanks.