having issue with low ph, got new reef keeper and now realize ph kinda low. always tested with basic test but colors hard to read. double check calibration on prode and it is right on . Ph reading 7.33 , my KH is 11 and calcium almost 500 , ph stable from night to day have reverse ligthing on sump with live algea in there. have purchase Kent superbuffer trying that. Any other solutions or remedies and how fast should I raise Ph back up? used Kent for two days now per directions up to 7.49 now.