i used potting soil ,,never used miracle grow ,,im happy i avoided it,, my ph was high i think it locked out some of my nutes ,,sorry i did not get the form in quicker it was asking questions i could not answer i took the time and found the answers i do have more than one bulb got 6 actually looking to get a good 2 ft florescent,,and bought a small fan to bounce air off the walls thank you for the help