Has anyone tried this stuff yet? I am about to switch salts off of IO and was thinking of giving this stuff a try.

ive been using it ever since rs introduced the new formula and i am very happy with it.

I've tired them all. I like Seachem reef: good, consistent salt.

I've been using it for the last 4 months without a problem.

I am using it as I switched from Salinity a few months ago and I like it a lot.

ive been using it for about a year i think...love it..good results

If you maintain your parameters, salts shouldn't matter. I switched from IO to RSP and didn't notice anything other than the brown buildup in my mixing bucket with the RSP. I'd go back to IO next time.