EDIT: I mixed up 1+ and 2+. I mean dosing the Alk when I say 1+, and Ca when I say 2+. Oops. Sorry about the confusion I am testing Alk and Ca every night, at the same time more or less. I've been using Aquaforest Reef Salt and Components 123+. I actually never need 3+ because my Reef Salt (all 3 buckets I've had) all mix with 1800ppm Magnesium levels (multiple test kits). So my mag is always super high no matter what. Instead I have dilluted Reef Minerals into my Component 2+ So far, I'm keeping my Alk at 7.95 dKH and Ca at 450ppm by dosing about twice as much 1+ than the 2+. It's been consistent this way for the last two months. I guess that is good, but wondering if I should be concerned if consumption isn't exactly the same for both 1+, 2+, and reef minerals. All instructions say dose the same amount, but I'm maintaining levels just right with different dose amounts. A bit more about my tank: - 1 year old - 40 gallons total system - Mostly anemones (Magnifica, bubbletips) - 6 pieces of SPS that are all fairly new (some 2 months, some 4 months), encrusting well - Pretty low nutrient system, almost undetectable NO3 and PO4 because I dose NoPox to outcompete Dinoflagellates (I tried everything, NoPox to build bacteria was the only way that worked, I tried dosing NO3/PO4 directly, big UV, siphoning for months, blackouts, etc). - Heavy autofeeder, manual spot feeding of Reef Chili at night for SPS, occasional mysis for the anemones. - AI Hydra 52 HD, running the Radion SPS+ with some modifications, full blast peaks (Saxby style) throughout the day. Magnifica, for example, is getting about 500 PAR halfway. Most SPS is getting 500 - 200 PAR. - Weekly 5% water changes, dark skimming (trying not to pull too much stuff out), and only running carbon in a small reactor. Thoughts?