Hello everyone. I have been recently having issues with my GBTA, I have had it for coming up on a year and a half and it had been shrinking up recently for the past month. I had an issue with an alk spike recently, but it is back under control. I recently got a rock flower anemone and it is behaving the exact same way (closed up with puffy mouth). Besides the alk spike the only changes I made was fritz salt, which I switched to from Red Sea in October 4th, however I switched back as the tank responded poorly to it two water changes later (two weeks) . All other coral and inhabitants look great except these two. Also if it has any significance my clam hasn’t been opening up as much recently. Tank is coming up on two and a half years old.
Salinity: 1.025
Alkalinity: 8.23
Calcium: 440
Magnesium: 1440
Nitrate: 15
Before
Past month ish
October 19th
Today
Salinity: 1.025
Alkalinity: 8.23
Calcium: 440
Magnesium: 1440
Nitrate: 15
Before
Past month ish
October 19th
Today