Yesterday I noticed my corals just didn't seem to be that happy; they didn't have that pop of color they normally do. And not opening as fast or as full. Just a little bit that I noticed. I tested my tank. KH: 9 CAL: 440 MAG: 1320 TEMP: 80 SG: 1.025 PHOSPHATES: 0 But my nitrates are between 8 & 10. I know I've recently been overfeeding the tank. I'm going to cut way back on feeding. Tank is 75 gal with 30 gal sump. Total water volume, 85 to 90 gals. I plan on doing a 10% water change tonight or tomorrow. I also noticed that some flesh seems to be receding on my frogspawn it also appears that its guts are coming out its side. I've seen coral spit their guts before, but theft normally retract them back within a few hours. I I think this would also explain why my Dunkin corals flesh is terribly receding. That and my acans weren't as full yesterday. I just hope it's not too late any suggestions?