btodd43":tya3pw69 said:But 1 more thing-I have been keeping my salinity at 1.023 but was told to get it up to 1.025-26 and I have been doing it gradually during water changes-noticed with the higher salt levels that the corals hardly open at all-? And I am mixing the salt with tropic Marin and dissolving real well (not overnight) that could be the problem with the recent deaths? arrrgh!!