I cant seem to get Cheato to grow. My Nitrates are creeping high and I need a sustainable way to export. Thought I'd give a go at building my own ATS. Why not start a thread and give/get some advice on the Build ! Today I picked up my Acrylic pieces at P&K Custom Acrylics in Malden, MA for $50 ! The plan is to build the bottom to fit across my 75 Gallon Sump and then build the light box on top. The Box is 10"x 4"x 10" with the base being 16.5" x 8", which will give me room to mount lights on each side of the Box. The front and back are obviously clear, while the sides, top and bottom are black. I already have all the plumbing I need from various past projects, so all that will be left is the lights. I plan on making the spray bar 3/4" with plastic mesh from Michaels and use 1" main drain with a 1/2" safety drain bulkhead. The supply will be 1/2" push connect RO tubing coming off my return manifold with a ball valve to control the flow. Should be a straight forward build. Any recommendations for design, lighting or things to ponder, please comment for all to see ! Here is the start of the project...