prodman
Active member
Is it possible your alk kit is reading wrong. I had a salifert kit that read almost 10 when my actual level was closer to 7. Burnt tips and stressed corals and not other animals kind of sounds a little like an alk crash.
I would have to wonder the same thing. Salifert DKH are notoriously inaccurate. And stn in a low nutrient tank is commonly associated with alk swings.