Have a Red Sea reefer about 125 gals including sump, less minus rocks and 3-4 inch sandbed. Have the common problem of trying to raise alkalinity and calcium to desired levels: 9dkh, 450 calcium. I hover around 5 -6.3 dkh and mid 300's calcium. Magnesium approx. 1200-1260. Trying to raise mag too a bit. Attached how I dose by hand every 10 days to 2 weeks approx. The more I dose the worse it is to raise levels. When I dose alk now I get white flakey precip that takes time to dissolve. Corals surprising doing great..SPS, LPS etc. all good. just battling a hair algae prob with NoPox and slowly reducing. Not concerned. Thanks for any thoughts.
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