Check the listing for details. Marine Source Phosphate Minus Sponge - Phosphate Remover - (2 pack). Condition: New. Listed at 19.95 USD. Marine Source – Phosphate Minus – Filter Sponge. Ideal product for reducing the phosphate which algae requires to stimulate growth. In addition it helps to prevent green water and blanket weed and is safe for fish plants. This 32cm x 12.5cm pad can be cut to fit filter cartridges, hanging filters, trickle filters, wet/dry filters, canister filters and pond filters. PHOSPHATE FILTER PAD is impregnated with special phosphate-absorbing particles to pull phosphates from aquarium water. Phosphate filter media will reduce the need for frequent water changes & reduce many other mechanical filter applications Marine Source Phosphate Minus Sponge - Phosphate Remover - (2 pack) Click images to enlarge Description Marine Source Phosphate Sponge Marine Source – Phosphate Minus – Filter Sponge. This product is for reducing the nutrient phosphate which algae requires to stimulate growth. In addition it helps to prevent green water and blanket weed and it is safe for fish and plants. This 32cm x 12.5cm pad can be cut to fit filter cartridges, hanging filters, trickle filters, wet/dry filters, canister filters and pond filters. PHOSPHATE FILTER PAD is impregnated with special phosphate-absorbing particles to pull phosphates from aquarium water. Phosphate filter media will reduce the need for frequent water changes & reduce many other mechanical filter applications Images sell! Get Supersized Images & Free Image HostingCreate your brand with Auctiva's Customizable Templates. Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva.com. Track Page Views WithAuctiva's FREE Counter