I agree, I think o may remove my sand also, same problems with high alk but I use reef crystals and it runs high on alk,but I can't justify spending more on another salt mix. I've heard of dosing calcium chloride to lower alk,but it'll adjust other levels.So got rid of sand bc it was causing issues w/nitrates and phosphates. I was out of town too and someone overfed the tank. :-( lost my clam and some acros. Added a UV sterilizer which cleared up the water. Also added a heater. Its heading in the right direction now. I need to glue the zoas to the rock and figure out where to put the holly grail torch. Im dosing reef fuel (carbon source) and keeping Alk at 7. Havent measured in a few weeks though. I have more problems when I run higher Alk.