oceansidefish
Active Member
I personally use NSW from the Scripps Institute of Oceanography...SIO. They filter it several times to remove the critters and such. It is collected from the pier at the research center in San Diego and it is used for all of UCSD's and the National Marine Fisheries facilites. San Diego State Marine depts. use it as well. It is much easier to keep balanced and personally when I switched my corals seemed to be much happier.