I’ve had this maxima for about 6 weeks and he has been thriving, always siphoning and wide open during the day. Today his mantle is detached, but it seems like he is still trying to siphon. Parameters are pretty good (see below). Only recent change was an Alkalinity correction over the last 24 hours. I had been running at about 8.3 dKH because it was easier to maintain stability with manual dosing. I introduced an auto dosing pump and decided I wanted to raise my baseline to about 9 dKH due to potential SPS growth rate benefits and would be able to maintain it easily with the new dosing pump. I have been raising it slowly and it is at about 8.7 dKH today (0.4 dKH increase over 24 hours). I’ve also been chasing high phosphates and have reduced phosphate from 1.0 ppm to 0.1 ppm over the course of about 2 weeks using GFO.
Two questions: Is it game over for the clam or could it recover? Is the alk change or PO4 reduction the likely cause (for future reference)?
Salinity: 1.026
pH: 7.9-8.3 daily
Alk: 8.7 dKH
Ca: 490 ppm
Mg: 3200 ppm
NO3: 1.0
PO4: 0.1 ppm
Two questions: Is it game over for the clam or could it recover? Is the alk change or PO4 reduction the likely cause (for future reference)?
Salinity: 1.026
pH: 7.9-8.3 daily
Alk: 8.7 dKH
Ca: 490 ppm
Mg: 3200 ppm
NO3: 1.0
PO4: 0.1 ppm