ChemDawg Clone

Plant is growing , it has had purple stems since I got it from a friend , it’s a clone , the solo cup he had it in I noticed had some algae on it when I transplanted it , and one leaf had discoloration to it starting from the inside going to outside of leaf. Still getting discoloration in more leaves now , can’t put my finger on it , thought maybe sulfur , or a cal mag issue so I tested the soil and the ph was high so I’ve gave it some soil acidifier which has sulfur in it , and some epsom salt for the magnesium, I’m going give it a week of just a little watering and see what happens. I am going to transplant this lady tonight into a 5 gallon , she might be root bound in the small 2 gallon.