I prefer both for flowering hps/mh. just my opion , it wont hurt trust me...
krisk1227 Reviewed by krisk1227 on . Adding MH Light During Flowering? I am working on my first grow. I have four white widow plants in a little grow tent. It's probably two or two and a half feet square. I know you're supposed to use MH for the veg period, but I already had a 150w HPS so I just used that to grow my plants. Everything has gone fine and they are in great shape. I am almost four weeks into flowering. My two most mature plants just started showing easily visible trichomes on the leaves a few days ago. It is pretty squished in that tent and there Rating: 5