Apparently there is a potential problem with Kent Salt.
There has been some reports of problems with 200g bucket salt mix composition.
The problem is an extremly low alkalinity. (below 1 dKH)
Possibly from not adding sodium bicarbonate to the mixture.
Kent apparently switched factories from Instant Ocean to Coralife and this problem has developed. (New buckets have Yellow in the logo/image)
If you are using Kent salt that was purchased recently I would urge you to test your water to avoid any potential catastrophies.
More info:
http://www.reefcentral.com/forums/sh...hreadid=760882
***This is not good news for people who were just in on the Group Buy in Edmonton, however I haven't had a chance to test the salt recieved in that specific order. So I am unsure if they have fixed the problem by now or not. If you were in on the order and can test this salt ASAP, that would be good. If not, I should have results in a few days. I'm hoping they fixed the problem a couple weeks ago when it was first noticed.