I have been noticing a not positive trend with my torch corals. My SPS seem to be doing well, encrusting, growing, etc… I have a little island of torch corals in my front left corner, over time they don’t seem to extend as far, and some have barely been reaching out. Some are fine. I had a couple awhile back on the right side of the tank on a rock pillar, on kind of the dark side of the pillar, that did the same thing. My ph is around 8.2, Alk around 8.4, calc around 420, and mag 1350. Those have been pretty consistent for awhile as I have been testing frequently and watching Apex to get this thing more stable. Rumor has it stability is good. My par on the top of tank is probably around 300 and in the bottom corners more around 120. I also target feed Reef Roids about once a week. I have an mp40 on both sides of the 80 gallon tank (set on different modes but probably max at around 60%). The torches tend to be closer to the side glass. I do a weekly 12 gallon water change, clean skimmer etc. I have been running GFO and carbon since start of tank 1.5 years ago. A week ago, I just took the carbon off. The torches were acting funny prior to this. Based on my reading on the interweb, I lean towards maybe not enough light. Or, could my water be too clean? Thoughts?