Originally Posted by Gregcoyote
I suspect your test kits or your use of them. It is VERY hard to get calcium up to the levels you report. You would have to be dosing calcium and/or Kalkwasser. I do both and get a calcium reading of 500. But I am growing a lot of hard corals. And keep my magnesium levels up to match. I suspect your reading. Take a water sample to the LFS
and ask them to test it for you.
My guess as well, either test kits or bad saltmix most likely. Probably need to eliminate these 2 possibilities first.
29g Mixed Reef, 150w 14k Phoenix MH w/ Moonlights, Reef Octopus BH1000 HOB Skimmer, Ecotech Vortech MP10es, ReefKeeper Lite (Plus), PH Probe, Temp Probe, ATO, Carbon/GFO Reactor.