Yeah Im just trying to put little bits of things together. As I have been doing a thread on a coral I picked up browned and the store i got it from could not get it to color up but it had PE. When I got it to my tank it had little but was still brown. Now there is little to no PE and still brown. All I use for filtration is a HOB skimmer octopus 2000 and a nitrate reactor and a phosban reactor. I dose alk,calc, and the coral color program(just started a week ago) and acropower. The tank is a 55gallon non drilled been set up for 4 years. I run two kessil a160's peeking at 80% intensity and 50% color. I run two T5-s one actinic and one coral plus which i think is red. I have a apex which runs everything. I use two powerheads I believe they do 1200 GPH each and a return pump. Temp runs at78 to 79. Ph at about 8.0 and salinity at 1.026-25. Alk at 9.5,calc at 420,mag at 1250,I dose 1ml of coral color each day . Potassium I havent tested since I have started dosing. Nitrate at 5-10,nitrite 0,phosphate.025ppm,ammonia at 0. I use hannah checker and red sea test kits. Plus the probes and refractometer. I use RODI water.