growing 5 female snowwhite from nirvana. plants are 6 days old about 1" tall. started out under 80w 4'floros at 3" and now sit under a 150w Hps at a little over 23 inches from the plants. they were in 1" stonewool cubes and just today got transplanted into some 4" cubes and then into some hydroton. 24/0 light cycle. i was thinking overwatering is this correct? i was watering everytime the cube felt dry which was about 2-3 times a day now they are on the hydro system getting water 3 times a day for 30min out of 2gph button drippers. whats wrong wtih my plant???? help me please!

anyone? the problem is getting worse