Seachem "Vibrant Sea" Salt

[d2mini]

Anyone know anything about this stuff?
My LFS just got a sample box and I'm going to try to pick up some this weekend at their big anniversary sale, a Seachem rep may be there.
I've always liked Seachem's Salinty... so very interested in this stuff.
One thing I noticed is it's concentrated. 1/2 cup to approx 1.38g of water yields 1.023 sg, according to mixing instructions on the box.
And parameters replicate NSW, nothing elevated, which is exactly what I look for.

http://www.seachem.com/vibrant-sea.php

 

[Reefing Madness]

 

[Potatohead]

I wanted to try this stuff but apparently the potassium is over 500 at 1.026. I have no idea why they decided that was a good idea.

 

[d2mini]

I wanted to try this stuff but apparently the potassium is over 500 at 1.026. I have no idea why they decided that was a good idea.

Good point, I'll ask about that. ULN systems maybe?
My last Triton test showed potassium at 438 mg/l which is already high.