Hello fellow reefers, im 5 months into the hobby I’ve been testing parameters regularly and corals were growing and thriving, just 2 days ago after a 20 gallon water change on my 75 gallon my alkalinity went from 7.5 to 9.8 used the same salt, water was at 78 degrees everything the same but shortly after the water change my hammer coral, goniopora, candy cane and some zoas that were all doing great fully closed. Just some advice as to what to do please. My sand starfish also died shortly after, Thank you
also feeding corals with reefroids and brightwell amino acids 2-3 times a week.
Parameters
salinity 34ppm
Alkalinity 9.8
calcium 473
Magnesium 1500
Ph 8.2
Ammonia 0
Nitrates 0 haven’t been able to raise nitrates even with more feedings
Phosphate at 15 “just added phosguard to reduce this.”
also feeding corals with reefroids and brightwell amino acids 2-3 times a week.
Parameters
salinity 34ppm
Alkalinity 9.8
calcium 473
Magnesium 1500
Ph 8.2
Ammonia 0
Nitrates 0 haven’t been able to raise nitrates even with more feedings
Phosphate at 15 “just added phosguard to reduce this.”