75 gallon tank, 20 gallon sump mixed reef.
I picked up a doser last week. I tested my water three days in row and the results were about the same or even a tad higher. Does this mean I probably don't need to worry about dosing for now? I am surprised because although I don't have a lot of grow out, I do have quite a bit of frags. Tested the big three. Calcium 472, Alk 8.7, Mag 1350.
I'm aiming to get to 420 Calc, 10 Alk, and 1300 Mag... any suggestions on this?
Separate question, my PH is testing about 7.8, I. Reading that reef tanks should be 8 - 8.4. Would you all increase your PH, and how? Just arm and hammer baking soda? About how much should I add for 90g? How often will O need to do this?