I have a grow space of 4 feet by 7 1/2 feet walls lined with mylar 1 400 w hps 1 400 watt mh a 6inch blower for exhust a 5,000 btu A/C I got some plants in there some clones I bought and a few I got free from friends I can add another hps if I need to but the plants seem to be doing fine the temp stay between 76-72 degrees my question is do I have adequate equipmnet for this size room and whats the max amount plants I should put in this room cause I keep getting free clones?