Thanks Rob, I ordered new alk reagent for my hanna checker and the new bottle is reading way high compared to my two bottles on hand. Im thinking while I thought my alk was 7 dkh, it was actually really high. Once the corals health declined the angels started munching them which added to the mess along with me changing some bulbs causing more issues to already declining corals. Been slowly bringing it back down, hopefully the corals will start responding favorably but Im sure it will take weeks to know for sure. lesson learned, need to have another brand alk tester on hand to compare at all times.