I'd have to say that you are making a lot of sand. I have a 58 with 12 stony corals and I only use 30 ml of B-ionic a day.
IMO it's the combination of the limewater and the super high dose of the two part that is causing precipitation. With the two part alone, that's a rise in calcium of 160 ppm and a 3 meq/l rise in alkalinity. There is no way that your corals are using that much.
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