So I got this montipora about 2 months ago. It was on my sandbed then a little off the bottom and then a little under halfway up the tank and started to really pale out. It even started to look like some flesh was peeling but I think the dots I'm seeing are still polyps. I have had it back down to the sand for a week now and was just wondering if anyone else had a similar experience and could chime in. The tank has 1 acro that seems alright and 1 birdsnest that was around the same height up as the montip but under more direct light than the monti. My alk is 8.4 cal is 500 and make is 1340. Currently only dosing alk when it hits 8.3 which is every day or every other day because my mag and calcium have stayed stable week to week with water changes. My nitrates were a bit high before but my algae issue I was having is almost eradicated and nitrates are between 0 and 5 when I test and phosphate kit isn't very accurate so I can only tell that they are low but not 0.