Thanks. It was 5.4 earlier but it went to 5.8 now. Trying to find a way to increase the PH. I just hope the remaining 4 VATFs will do fine and not die on me.I’m not an expert by any means but I think the 5.8 ph did much more damage than .5 ammonia.
I suspect there is something else at play if your ph crashed that low, it most likely was a build up of something rather than a sudden spike….
sorry for your loss