Hello: I am a first time grower. i have my seedlings under a flourescent light and i am going to switch to 1000 watt light. it is over 3 weeks and they are ony 3 inches but the leaves are big but now the bottom leaves are starting to turn YELLOW. I have them in coffee cups , maybe the cups are to small and i should transplant to the 3 gallons buckets. thank you
