So I have a couple large hammers, one with about 120 heads, and one with about 40 heads. The smaller one is from the larger. Just a few days ago I had one head die off of the large hammer. tonight, I can see 3 or 4 dead heads. Nothing crazy has happened that I can tell. dKh is 8, magnesium is 1400 and calc is right at 460 and system has been stable for about 2 years. I am running AI Hydra 52s on the tank. Just not sure what to do here as I don't want to lose my favorite corals. The only thing that I have done new in the past month is add a 24W UV sterilizer about a week ago and I'm wondering if this could be having any kind of impact on this.
A little more tank info: 90 gallon mixed reef, Cad lights 1220 skimmer, dosing Mag, alk and calc on a daily basis with a dosing pump.
A little more tank info: 90 gallon mixed reef, Cad lights 1220 skimmer, dosing Mag, alk and calc on a daily basis with a dosing pump.