Best Sea Salt for Reef Tanks?

[sphelps]

I've had success with virtually every salt I've tried and I think I've tried almost all of them. In the end I'm not sure it really matters but I currently use Reefer's Best because it's one of the few that mixes exceptionally well and has always been consistent. If I had to pay $100 or more for it I'd probably use something else but at $80 I'll continue to use it until the price increases or it becomes less available. I also prefer the box which is easily recycled, I have no need for more buckets.

IO is by far the cheapest and certainly works just fine but I find it requires more work. Takes longer to mix and sometimes needs to be aerated to prevent precipitation, especially if you plan on supplementing with it.