Randy Holmes-Farley
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My Tank Thread
The max it hit was 14.9, and that was a day and an half after this happened and after about a 40% water change with salt testing at 8. I did 30% water changes the next two days as well and it went down about .5 - .7 everyday until it hit 10 which is where I’m keeping it currently. I’ll very slowly bring it down to 8 over the next month or so where I usually keep it.
As noted above, The good thing about an AFR overdose relative to a normal alk overdose is that the conversion capacity is likely absent for a fair amount of time as bacteria try to increase in numbers to consume all the formate. That may be why the peak was not higher.