Aye it is...

IO or Kent, I used Kent before when it was made by IO, both have worked well for me. I tried that one with the little bottle but didn't like trying to mix it, learned later that I should have just put the bag in a bucket and added enough water to make it like soup then added the little bottle to that and mixed my water from there.

Doug

Started with Red Sea and now I'm a Kent user.

Instant ocean here

Been using Kent for over 6 years and has always seemed to do well for me.

I did read that artilcle in Advanced Aquarist recently, and was pleased to see that Kent scored pretty well in most areas compared to the competition.

I also like the fact that it's one of the most reasonably priced compared to the others. :)

Kent used to be made by IO, basically it was IO with a secret package mixed in while in the big mixing drums. If I'm not mistaken Kent is now made by Oceanic, not sure how much the chemistry changed but I would imagine it did change somewhat. I still like IO but I did use Kent to set up my 20 gallon tank that I've got everything in until the 60 is ready to go. I've got a bag of Kent salt for the 60 once it's ready but then I've got my bucket of IO for after that.
Frankly, I think all salts have the potential to be good, we all tend to like what we like regardless of what different reports tell us about urchin larvae survival rates etc... I like what I like and as sad as it is, there is no scientific evidence to tell me why I like it, the evidence tells me it's not a bad salt at all so that's great. If the evidence told me it was the worst salt, would I change salts? I can't say I would, if it's been working for me why change a good thing.

Doug