Like Tim, I've been using H2Ocean for several years now in my reef tanks for the same reason - it's derived from natural seasalt. I add Mg and K to H2Ocean and my testing has been very consistent with it. I used IO (and IO Reef Crystals) almost exclusively from 1993 to 2009 and I thought I was happy with it until I switched to H2Ocean. When I used IO I added Ca, Mg, and K. In my opinion, for the
average reef aquarium IO is a perfectly fine salt to use. If your tank is PACKED with SPS corals (in particular), I think IO is sub-par. Having said that, I've seen AWESOME SPS tanks using almost every brand of salt out there. I don't think salt choice is the be all end all as long as you stick with one of the more major brands. In the end, I think it's more about parameters. If you want to keep alkalinity at 7-8 dKH, IO or IORC is a really poor choice because they have high alkalinity. If you want 9-10 dKH, then H2Ocean is not the best option.
Quote:
Originally Posted by Aquattro
Personally I think saving 10 bucks to support a store that you feel gave you bad advice, and otherwise avoid, is not good reason. JMO
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I agree with this 100%. In my opinion, this is really the most significant part of this whole thread.