"Soft" corals
I've had a rock of red mushrooms for about a week and a half, and ever since I put them in my tank, they haven't opened fully. My levels are perfect:
PO4: undetectable
No3: <5
no2, ammonia: 0
Salinity: 1.025
Cal: 480
Ph: 8.2
Kh: 21
I have all reef safe fish, my xenia, LTA, and palythoa are...