My seedling is not growing
started seed (Abnesia Auto CBD) in paper towel Dec 31, 2020, PHed water- 6.0, temp 80 degrees F. Day 6, she sprouted, put in rockwool cube, no light Day 8, she has popped up an inch overnight. Jan 8-Day 9, up another 1/2 inch, tho leaves showing themselves!This same day I placed in grow room with heating pad under, temp 80, Viparspectra VT300 on at 30% 30inches above- couple hours later plant is drooping, took out and placed by window with heating pad for 2 days and night. seems ok-Jan 10- day 11, place back in grow roomwith light at 15% still just PHed water.Not much change Looke like edges of the first leaves are browning?. Jan 16th, not any growing, add some nutriants-Tecnaflora-B1 Red, one quarter strength.Put light at 15% still looks like edges of leaves burning- no growth! Jan 18th Raise light up to 45inches, 30%! Not growing!! Jan 21- about to give up!! HeLLLLP