Check the listing for details. EHEIM 2515051 PHOSPHATE OUT 390g. Filter Media. Aquarium. Condition: New, Made in Germany. Listed at 27.80 USD. Eheim phosphateout is a special iron compound for chemical filtration. The iron binds the phosphate, removing it from the water circulation and thus reducing in stages the phosphate levels in the aquarium. In this way algae growth in the aquarium is inhibited. If the phosphate levels and consequently the growth of algae starts to increase, this means that the filter medium is depleted and must be replaced. Eheim phosphateout is available for external filters in granulate form and for internal filters as a foam filter cartridge. It is free from harmful substances and suitable for fresh and marine water. Please bear in mind it is dispatch time and not delivery time you are marking us on. We do our best to offer you a 5 star service if you feel for any reason you have not received this, th.