pH
pH
Thanks for the help. The alk is 13 and Ca is 300 and pH is 8.07. Ca and pH still a little low, but Alk is much better. I think I will try a Kalk drip to bump up pH and Ca next week.
Good idea on the Ca reator return, but I'm not sure I could do that and still have it be a gravity return. I will have to give it some thought.