On a few of my plants, in the areas of new growth, mainly the budding sites, the new leaves have begun to turn yellowish and grow slower. I looked around online but none of the regular nutrient defitiencies seemed to match my problem. Recently the leaves started showing really light traces of red coloring. I'm guessing it's a ph problem, with it being to high. I have no means of checking the ph as I am doing this grow completly for free. It seems like adding sulfur is the best way to lower the ph without adding exess salt. Alright here is my grow: all 5 plants are clones from females 3 dutch passion white widow 1 Hash plant 1 bag seed The soil I used was a mix of soil I dug up from the middle of the forest combines with some old used potting soil mixed with old pidgeon and chicken droppings. In the begining I used miracle grow as a fert but then as flowering started about 2 weeks ago I switched over to bat dropping collected from my attic mixed with fresh pidgeon droppings. I added some egg shells today just to make sure I had enought calcium, Now my question is what are some good sources of natural sulfur that I could find easily? Should I really just go buy some sulfur? Or am I way off and have some other problem? Anyway any advice is nice, and If it's really really neccesary I could post some pictures although I'd really rather not.