Can somebody explain what Epson salt can do for your plant. I hear about using Epson salt but I also read about making sure to prevent salt build up? What does Epson salt do? Does it help keep the ph right? Does it help certain deficiencys? I remember billywu said he was goin to use some because the ends of his leaves were turning yellow/Brown and since my leaves are doing the same I'm considering getting some. Can someone please tell me the pros/cons of using Epson salt.