I had been using Fritz RPM but I was having a bit of trouble keeping the alk above 7dkh, and calcium and mag were always a tiny bit low (not enough to hurt anything at 380 and 1360). So I switched to Reef Crystals. I moved my 29 gallon nano into another room yesterday and changed about 70% of the water using the reef crystals. I just tested and my tank is now 11.5dkh. Is that normal for reef crystals and is that too high? Salinity is 1.026 and all other parameters test great. Calcium is up to 400 and mag at 1400. Just concerned that jumping the KH so drastically. My toadstool didn't extend it's polyps fully today but that could also be due to my handling it yesterday while moving the tank.


