JoeRonda
Made in the U.S.A.
I don't see spending the extra on Reef Crystals for all the "trace minerals" and what-not. I use Instant Ocean, and my 5 month old tank has perfect levels of calcium, KH, Magnesium, etc. The only reason to get Reef Crystals would be if you have corals and need a large surplus of Ca,Mg,Mn,etc.