Wilted GSP?

[Bret Brinkmann]

My GSP has been doing well except recently it looks wilted. Any idea why? No ammonia, nitrate, or nitrite, SG 1.027, pH 8.0, dKH 6.5, Ca 620, and Mg 1340. Lighting 20K Build My LED. 29 gal. Moderate flow. Been happy for months with this setup which has been stable except for the calcium. Which I slowly raised up from 440 over the course of two months.

 

[cjd]

Your salinity is on the high side, should be no more than 1.026 . Measured with a calibrated refractometer (please not a swing arm). Alkalinity should be in the 8's . Question why you raised calcium to 620 ? 440 was high normal. Mag looks good. High salinity can make corals unhappy and low alk can make polyps retract. I had green stars that curled like that for awhile then extended back out. I would start by getting the parameters back in line and give them time.