I'm sure this topic has been discussed already but I'm new to the forum so I apologize in advance if it has been a worn out topic. Anyway, on to my question...I've got a 250 watt hps light and have always just grown one plant under it at a time but I'm now wondering if I could grow 2? I have modular wall set up that I place around the plant (and possibly plants) that is top to bottom mylar and it has a mylar floor with a small opening on one side for some ventilation from a fan. Would this set up be ok for growing 2 plants or should I stay with one. When I grow one it is a sativa hybrid but strongly sativa but only growing to around 3 ft. I'm wanting to grow a slightly taller indica variety next to it both feminized and again just wondering if this will be adequate light for both plants?