I am getting good growth and encrustment from my sps, just not seeing the polyp extension I would like. Parameters are: Temp 77f, Dkh 7.8, cal 450, mag 1500, po4 .06, no3 0 to .5, k 420, sg 1.025. 165 gallon 6 foot tank with 2 gyre 250s and 2 mp40s at each end of the tank. Fish are yellow,purple,chevron and naso tang, melanarus wrasse, 2 clowns, 2 banggais, coral beauty, and 2 dragon face pipefish. Lighting is 8 lamp 5 foot t5 with reef brite vho.


