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Here’s a video of the flow. I haven’t changed anything regarding flow for the past six months so I don’t know if it is causing the recession. The flap is barely moving in the flow. I will test alk/calc/ salinity and heat and post resultshi, 1st is flow to strong across right side of brain?
next would be looking into calcium and alk levels.
Will do! This is the only coral in the tank other than a few sticks of acros. I will move it from the front glassOdds are it is a water quality or coral warfare issue if you're getting bailout. If you really care about it, a few aggressive (20%) water changes could go a long way to both purge and DO warfare toxins and possibly reset elements/nutrients. IMO that's the best rescue plan. Were there any corals nearby that could have stung it?
Otherwise the next main culprit would be too intense/concsist of flow on one side/from one angle on it.
Last week, Alk was 7.6 and po4 was 0.1. I will test again and post them after!Did you have a drop in alkalinity? What is your PO4 level?
If it's in a low flow area getting 100 par your fine as long as your parameters are consistent. What is your nitrate?The temperature is 76.1 and salinity 1.024. I do notice a little bit of the same skeleton on the left frontal side as well. Should I move it back a bit?
It’s in a really shaded spot with low flow at the momentPut it somewhere with low flow and low/medium light ( < 100 PAR) to recover