love this stuff!....Took a while of testing each and everyday to figure out what the ideal, daily dose was going to be. I used a daily log and documented everything, tested the Ca and dkh before and after dosing to see what happned, then I noticed paterns to the usage and finally came up with 60ml of each part per day on my 75g. I divided this into two doses of 30ml each so that there wasn't a wide swing in levels and they stayed more consistent. I've noticed incredible growth in my sps corals, eveything has a white tip. Now my water perams are pH 8.15 Ca 425 dKh 11......