[Joshua Jones]

Take a look at what you're trying to accomplish and what's important to you.

For fish only, cheap salts like IO, seachem, and whatnot do the trick just fine.

However, if you're getting into more demanding corals and performance matters to you, it may be worth
it to you to be able to rely upon both consistency between batches and properly balanced levels, especially
Ca, KH, Mg, and K; which is not offered in economy salts.

We use seachem reef for our fish, and Reefer's best for our corals.