I may be jumping the gun here but if there is no resolution soon or some type of explanation I'm switching salts. I'm sorry the more i think about it the more I can't justify chancing it. Like many others I have way too much money tied up in corals to be taking these chances. I had a stylo peel, big reduction in polyp extension on Millis and tenius. I'm seeing some brown film on the sandbed after water changes. This could absolutely be some of the ups and downs in reefing and something else is at play. The one story that that sticks with me the most is sbb corals.. I still have 3 large boxes that I guess I'll keep and once we get confirmation of something I can start using them again. I would feel alot better if they find something and offer to replace them or switch them out. I sent off a icp test today was going to wait on results but I don't know I can wait. I really want to order another salt and try a water change to see if I notice a difference.