Purple Kush GH Hydro

Popped her in Rapid Rooter then put her in the Clay Pebbles in the net pot. Hand watered around the plug. No roots showing up yet. Net pot lid is 6" deep and 6" in diameter. Using the Maxibloom Lucas Formula for Bubbleponics DWC. Using 3 grams of Maxibloom for the seedlings. Will up the ppms as she gets bigger and I notice a drop in TDS. I added Myco+ from Element Nutrients to help with benes since my water is above 70F. I also added Hydroguard. I do have UC Roots on hand in case something happens and I need to go sterile. My first time ever doing hydro so its a learning experience. Noticed the 1st set of leaves are getting light green to yellow. Some spots maybe drops of water LED cooked it. The 3 fingered leaf looks better. Could be from the LED lights as I have already moved them up 1" to 13" instead of 12" Maybe its because the roots havent reached or maybe the plug is staying too wet. The pH is floating from 5.5 to 6.4. Ive been able to get it to stay in range longer after the first 4 days of struggling to keep the pH from going to 6.6 in just 24hrs. Maybe I have to bubble my tap water 24 hrs before I add it to the bucket. I also have Citric Acid and Potassium Bicarbonate to adjust ph as wells as GH pH up and down.