Tacman- I veg a bit longer than that. Keep taking clones 'till the main stem is nice and stout about 8" and have 3-4 nice size colas (on hasberry & most heavy indica) on sativa leaning strains I keep mainstem shorter and maybe 6-8 colas like a candlabra. A lot of the time my veg time depends on space. Always keep flower cab full. Keep nitrogen out of the flower cab unless obvious def. Or you'll have to trim inflower sometimes you do anyway f98ks up main cola but end up w/hard little nugs lower down.
Those t-5s might do 4 for veg 2 for clones but inflower you have to have all 8. The evenness of floro is the advantage not penetration. If there is no bulb directly over the plant no yeild. I just pulled a runt that only ended up about 12" tall 10" away from light 5grams if I'm lucky and that is with side light. The cab you describe would have 20-30 minimum 50 if you don't have any sidelights. 50 times 10-15 grams minimum :-)




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