Hi, You are just the person I am looking for. Quick Download: I have 750 gallons of Marine Ponds in my backyard ( all documented on my threads, Henn ). The water is good enough for soft Coral and there are over 100 Dwarf Seahorses in two Breeding Corrals. There are no Nitrate Problems, no hair algae, along with the Protein Cannon, the water is prime. I designed a complete Marine System based on the Marine Ponds. It cost about $20 complete. All the instructions are in the threads along with pictures. Because no one seemed to care about Nitrate Destruction in a pond, I built a system last Saturday ( 06/20/20 ) and installed the Reactor/Protein Skimmer ( the stuff is in your Junk Drawer ). The Next morning the fish went in. On the following Friday ( 06/26/20 ) the Frags from Marine Pond 1, went in. Today ( 8 days from dry tank ) the Aqua Sculpting began. People are following the Different Tank Build. Please look at the pictures. All you need, is to use the bottom two core part. The Air Driven Pump. The old Foam Cores are tossed and replaced with a Knitted Shade Cloth ( see pictures ). The Twisted Ribbons of HDPE form tiny Anaerobic Rooms and the weave allows for large flow. It makes the Reactor equal to 1000 sq ft of Coral Sand for each sq ft of HDPE Shade Cloth wound on the Bobbins. This is not a fantasy, if you add one unit to your tank ( hide it anywhere ) and supply the air, it will begin Destroying my sworn enemy Evil Nitrate. Every sad story boils down to Nitrate. I can not let any of my Ponies go until these systems are common. The Marine Ponds have better water quality than Santa Monica Bay. Join me in testing out this potential game changing method. You have nothing to lose but your Evil Nitrate ( and maybe the cost of a single Frag if you need the parts ). Read the Threads and if you agree, shout out that testers are needed now. They will need to make their own. I only decided to show people this device last week. I don't think there has ever been anything quite like it. Things are dying from this scourge. We can do this as a community and make a difference.