I've never used coco, but i've seen plants grow from clone to harvest in regular soil using 16 oz (20oz cut down) pop bottles. this was a SOG cfl method, and the results were great. Weed is just that, a weed, and from what i've read, it can pretty much thrive in most situations. i'd say go ahead and try, the worst that can happen is you have to transplant, right?