Check the listing for details. Algae Reactor A50 (200l). Phosphate and Nitrate Removal.. Condition: New. Listed at 76.13 USD. Algae Reactor A50 (50gals/ 200l). For removal of phosphate and nitrate from Marine and Freshwater systems. This kit uses the PO4 150 reactor as the basis for this kit. The waterproof leds are to be wrapped around the reactor body and held in place with 3 x cables ties (supplied). Sponges can be removed if required and just the media trays can be used. Algae can then be tied to the media trays with cable ties. This makes a cheap but effective way to help remove phosphate and nitrate from your system... with a little help of some chaeto (algae). Designed as a free-standing, in sump or as a hang-on reactor. Please state on purchase if you would like a hang-on bracket fitted... as the reactor will be sent without a bracket otherwise. Kit includes: Algae (PO4 150) reactor, 12v LED strip (1.5m), control valve, 12v adapter and 3 x cable ties. The LEDs supplied will be a Red /Blue Spectrum. Leds should not be submerged in water. Pump Requirement: 500lph Algae Capacity: 1.5l ( Algae purchased separately ) . Power Consumption : 21w Dimensions (mm): Height: 400 Footprint: 115 Column Dia: 90 Hosetail Dia: