Update
I read up on carbon dosing (biopellets) and alkalinity. The consensus seems to be that if you carbon does, then the Alk has to be close to natural seawater (i.e. 7-8 dKH).
It took about 4-5 days of no Kalk and no Alk solution added to bring the Alk down to the desired range. It read 7.6 this morning, which is in line with yesterday's reading. I've also been feeding the fish a fair bit and adding aminos and BRS reef chili for the corals, just in case the corals were starving. This morning I had the best polyp extension I've had in weeks. Hopefully this means they're out of the woods.
Now what?...
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