maybe you're right but the fact that had great color and good polyp extension immediately prior to the dip and today is essentially a skeleton waiting to happen sure isn't making me feel good about the dip! All the other acros in the system are doing well. I also just recently made the switch over to the zeo system and the algae in the system is going a bit crazy since I stopped my phosban. Maybe it's a combo of things. My measurements this evening are also not great with low calcium, low magnesium, and barely adequate alkalinity. Man, it's amazing how fast things can get out of whack. The calcium is particularly puzzling since all my top-off is with kalk and I am also dosing two-part. I still can't seem to keep calcium and alk where I want them. Is it because of the low magnesium?
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