I've tried quite a few different salts over the years......Coralife salt wouldn't touch with a stick, IO not bad IMO......Kent was ok wasn't overwhelmed.....Oceanic was average IMO...did dissolve nice, but didn't see things explode as everyone raved and said it would, and then came all the pounding about their quality control issues.....so not very high on salt recommendations for me and Seachem was a good salt, but doesn't dissolve well IMO, and at times you could get nice fresh batches it seems at my supplier and other times it seems they were old and hard......TropicMarin Pro is very nice salt mix IMO......Seems very consistent, and been very pleased and I've always been a Reef Crystals fan, but TM is giving them a run for their money IMO.