https://www.youtube.com/watch?v=Xfj7VYqVtXw
It's tough to keep 700 plus gallons in top shape when I have had to be away with work Mon-Fri for the past 4 weeks. I am having some tip burn on a few pieces and a few brown outs.
Definately not an alk spike - it was actually low at 6.5 DKH with Ca @ 420 & Mag @ 1350. Not sure what the cause is yet.