GDD and Purple Kush plants, need advice and help

So i have two clones that have been fully rooted. and i ust just had potted them in soil a week ago.. I have two 125 w cfl. an 1 26 w for sides.. this mornig i woke up and there what looked like burn marks on the leaves, It turned that leave mostly yellow and its curling at the tips.. Also the gdp haskinda of purple pigments that are at the tipsof the side an front of the leaves.. but besides that the plants look healty.. but what should i do.. i need help
 
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