Quote Originally Posted by Cyclonite
Yea the little ones were doing good at 600 ppm before, the only reason I got the MH was for the Veg since ill be doing flower at the same time, that is if the clones work out and all. I tend to read allot and dive in deep....first grow with aeroponics. Do they look the right size for 3 weeks from seed, I read somewhere that they should be 1-2ft by now. I was using that MV lamp though, they probably would be the right size if I just used the HPS to start.
1-3 weeks from seedling and 1-2 feet is pretty optimistic in my eyes... If you start with rooted clones then you can usually get 1-2 feet in a few weeks. MV is really inefficient and not as good as MH, although both are very hot when compared to HPS. Im considering getting a switchable ballast and giving MH a try in a closet to see if I notice a different, however I am very happy with HPS results.