Stunted Growth?

I have 7 plants...4 of them are new not much to look at the other 3 have been growing for close to a month now...none of the 3 are over 7inches tall and seem to be growing very slow...the strain is unknow due to the fact its bagseed. I have fans, mylar, about 15 cfl bulbs (half daylight bulbs the other half white) peatmoss soil. The temperature gets about 84 during the day cycle and about 69-72 during the night cycle. (but the lights are on 24/hrs) All 3 plants have started showing pistils but they are so dam small..I just topped all 3 plants a few days ago to maybe go ahead and get 2 colas per plant and start budding in 12/12 just because these are taking wayyyyyyyyy to long. Almost a month of vegging and not even over 7inches tall. I added nutrients in on about week 3 they didnt do any time of damage to the plants. The plants look healthy green and seem to still be growing. Just not growing fast enough i suppose? maybe its the strain? maybe i water them to much? im not sure any suggestions? I water every morning about 8:30-9am with a spray bottle and make sure atleast the top 2 inches of the soil is moist. How much should I be watering them at this point? any suggestions please let me no thankyou
 
Top