5 weeks from seed with fluorescent tubes... looks pretty normal to me. Pre-flowers should start showing in the next few weeks. 8 weeks veg time is normal with those kinds of lights. Just keep doing what you're doing, all is good :jointsmile:

From the pics they look indica dominant mostly, so that's good. They shouldn't grow up too tall and will flower fairly quickly... so you got that going for ya too :thumbsup: