Mg levels = 1280
The dead or dying Monti Caps have all been removed.
A couple of my fish are behaving as if they have been poisoned (hiding, difficulty swimming, not eating - see attached video) but others appear to be OK.
Impacted: Yellow Tang, False Perc (female), Bangaii Cardinal
Not impacted or impacted to lesser degree: Neon Dottyback, False Perc (male), Sapphire Damselfish, Lawnmower Blenny
Crabs, snails and sand sifting star appear to be OK.
I double-checked my doser and based on the my records, I do not believe that it would have been possible for me to overdose the system to this degree without noticing. My Ca and Alk dosing containers are side by side and if there were a problem, my Alk container would have contained far less solution relative to the Ca container. I am now dosing nearly 2.5 cups of Ca per day and the level fluctuates between 300 and 350.
I am wondering whether or not this die-off could have been caused by something else (bad salt mix (NeoMarine), tainted buffer (Bulk Reef Supply), ...)?
It is still not clear to me whether or not a major die-off of SPS could cause Alk which had already been consumed by the corals to be released and cause the Alk spike. Does anyone know?
It is also not clear to me if this die-off event is releasing other toxins into the system which is causing the problem with some of our fish. Does anyone know?
I plan to have Gerber's double-check my water test results and perform another large water change this weekend.
Thanks in advance!