This is my first grow even though ive been thinking about and reading books on the subject for years. i started my seed off last friday, they have opened up and the first leaves are there right now, i only have 1 floro on it and their in a ventalated box lined in foil. they look promissing as of right now. i am in the process of buying a hps light. Can i just use the hps through the whole life of the plants? or do i HAVE TO buy a mh? im kind of tapped for dough.