Stopped the DOS completely. I am losing the Platygyra and I think the high ALK and too much flow is to blame. I have moved the coral to a shaded area at the front of the tank with little flow. I am hoping to improve it's chances there.

I will restart the DOS with 5 ml a day once I have the ALK back to 8.5
I will up the dose until it remains level and hopefully my calcium will begin to move correctly by then.

2017-04-04T18:01Z[GMT]