It was API Quik Start. The link is below. The guy at PetSmart, who is also an aquaponic gardener, recommended it. I know not everyone know what they're talking about and should be taken with a grain of salt. I've just been in a rush and anxious to start my system.... Patience.... I learned it with homebrewing, seemed to forgotten it already!

http://www.apifishcare.com/Products/Pro ... ductID=642