When they are hella small, I believe that they are establishing their roots in the medium and/or new transplanted home. I recommend the use of pH water or distilled water when they start taking off vertically, but nutes should be minimal until they get up near 5 inches or so and then when they grow a bit more past the 5 to 6 inch mark, then look into increasing the nute solution percentage. I am in my first solo grow, so I'm glad RIU community is here. Good luck!Yeah i take them out in the morning around 9 then keep them out until around 8 then bring then in and put them under lights. Thats my plan because nirvana has some good genetics. You planning on giving nutes or just let them be? I havent even used phed water