I would like to suggest a meeting topic of Intro to Fertilizers for one of our monthly meetings. I think it is a very interesting topic that I know little about and I bet I am not the only curious one. So, whoever chooses such things, I vote Ferts! Actually and Intro to Water Composition would be great too. kH, pH, CO2, nitrates, nitrites, ammonia and the like and how they relate to each other. Shango _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member