Oceanic.. I have tried IO, Kent, corallife, Crystal Seas Marinemix, RedSea.. out of all of them I have decided that Oceanic is the one to stick with.. dissolves fast.. Very balanced salt except Alk
could be higher... I figure thats the cheapest to raise.. All other slats were either very low in Ca
, low in Mg
, too high in alk
or caused some mad algae blooms.. I am Extremely happy with Oceanic and will stick with it until someone proves to me there is better out there or that its bad for my tank..