Bangemslim
Membership Expired
have been using fritz for a few months now and never had an issue until this week. Water has always been 1360-1400 magnesium, 7.7-7.9 alk and 410-430 calcium. I've been trying to slowly raising alk to 9 and only been testing alk. Started losing my huge patch of king Midas zoas and my RBT started walking so I knew something was up. Tested everything today, ammonia 0, nitrite 0, nitrate 5, Phosphate 0, ph 8.1, alk 7.9, cal 410 and magnesium 1600. Red Sea tests end at 1600 but it was exactly at 1600 not unmeasurable. I even tested 3 times with 1600, 1560, and 1600 as the results. I did a waterchange of 20 gallons on a 135 and am at the end of a box, batch 7 of 8, so not the end but close to.1) is there any major concern with high magnesium?2) could this be the cause of an unhappy tank?3) what could have caused this?