I have 2 auto flowers that have started flowering their about 30 days old. I have them under a Hps light. my question is I just sprouted four seedlings and their only a day or two old. I don't have floro lights and I don't have the money to get one at the moment.there all in the same tent together. Should I switch my bulb to the metal halide which I have? Or should I just keep the hps going? Opinions appreciated