Hi, I am new to this forum, I have a new 65 gallon reef set-up, 2 months old with about 100 lbs of live rock split between the main tank and the refugium/sump. Filtration is accomplished by an algae scrubber and small skimmer. Tank stats are Ca 395, Kh 9.3, Alk 3.31, Ph 8, Sp. Gr. 1.024, No3 0...