Ok so my grow room has 6.25 sq feet and i have 312watts of fluorecent with some being 6500k and some being 2700k with that being said im at 50 watts per square foot which from my research is where i need to be....im only gonna be growing 6 plants so i wanna add a hps light u guys think 50watt hps is gonna be sufficent for my space n plants???