Apparently It's a more concentrated salt,maybe that's why the higher price.Even though the math doesn't add up IMO.

BTW anybody prefer this salt?

I have had a huge difference since using this salt and only half of a pail used. Corals open and happy like never before. Highly recommend it.

What did you switch from?

Was using IO and dosing now no more need to dose levels are great without

I have a zoanthid dominated tank with a lean towards Hawaiian PE types and I find Seachem salt alone without dosing kept them happy.recently I've been using reef crystals and I find the alk drops off too quickly(3-4 days)Seachem seems to have more buffering stability.

My Alk was my major issue before switching now it is stable as can be. Ph used to be constant at 7.9-8.0 now 8.0 morn 8.1 evening but I have a light on reverse on my sump.