Cheap Reef Crystals?

[globaldesigns]

I guess it comes down to whatever works for you... In my case IO is great... I have 300 gallons of water that I have to work with, and have never had any issues.

I like instant ocean also because it has been around much longer than most other brands, kind of like the grandfather of all salts... So this is why I went with it in the beginning and just have stuck with it.