Well I did something I hadn't done before ever, adjusted my freshly made saltwater alkalinity.
I had made up some saltwater Friday and decided to test it's alkalinity. It was at 11dkh. My DT is at 9.3. last night I tested it again and it rose to 14 dkh. Having some muriatic acid on hand, I dosed 1.2 ml of acid for each point of dkh to drop. So I started out with 4 ml of acid, allowed to mix and tested it. It came out at 10.3 dkh. Close but not there yet. Added another 1ml of acid and tested it. Came out at 9.3 dkh! Success! But dropping alkalinity with acid comes a price, PH. It was at 7!
So I added a air stone on a air pump to the saltwater over night. Bingo! This morning it was at 7.8!
Did the water change and everything in the DT looks great!
I'll be doing this from now on!