Thanks for replying man. I have searched the forums and have learned that some people like Miracle gro and some don't. Some use it some don't. I've read that if you use it full strength it can burn the leaves, but we haven't been doing that. I also read in several places that it can be lack of nutrients. I did attempt to research this but am looking for more experience. Thanks a lot, I'll invest in a PH tester!!