yes.. I would use 3 gallon : )
and perlite..

cheers
Garden Knowm Reviewed by Garden Knowm on . First Grow . . . slowly dying First I would like to thank all the members who do so much work for these boards. I have spent the last month just browsing through journals and FAQs and I have learned a lot. However, there are some problems with these plants that I am not sure how to diagnose. I think they have nute burn or a mg deficiency or something. The plants are wilting, have leaves curling downward, rust colored spots along the leaves, and generally look sickly. There are 3 plants in rock wool burried in potting Rating: 5