Withing the past 2 weeks one by one my acros are losing their polyp extension during the day. Since I started dosing Elos Aminos a few months ago i've had crazy daytime PE. At first I thought my new majestic angel was picking but upon watching for a while, i found that he was only picking on one pocillopora. The only pieces I have which seem to be still doing well are my Tyree Tricolor and an unknown acro. The skin color is still normal and they're still growing fine. A few days ago i put some carbon in the filter sock as i can't think of anything else to do. The only things that have happened recently are that I foiund out my calc and mag were low (switched to salifert test kits so of course) but that was after the problem started. I started running phosban passively about a month and a half ago and I added a majestic angelfish. Ammonia, nitrite, and nitrate still read zero. ph 8.3. 1.025sg. I dose elos amino's daily and sometimes soak food in selcon. I even pulled out a few frags and dipped them in revive which had no noticeable effect. so, who out there has ideas???????