Holy Mackeral!!!

[rappa]

Just tested my KH, PH, and Calcium. 50 gallon reef. I recently changed salts from Instant Ocean to Oceanic. KH is usually 8-9, Ph is usually 8.2. After 3 weeks and 2, 20 gallon water changes here are todays numbers..
Calcium=430
KH=4
PH=7.9
I have on hand some Seachem Reef builder, some Kent Superbuffer DKH, and B-Ionic.
What should I do?? Nothing looks like it is doing bad in the tank yet.

 

[schadiest1]

reef builder and superbuffer will do the same thing for you. I would start using one of those to bump up your PH and KH.