don't start clones in 5gal buckets! you need to start in small containers and repot as they grow. this creates a better root ball and thus a better yeild. not to metion watering a small clone in a 5gal bucket could get tricky. when roots grow they just go out to the edge of the pot and down to the bottom leaving the center almos empty. that is why we must repot to get good yeilds. also test your cab first to make sure the temps don't go above 80 to much. i have a feeling 85cfm isn't enough. i had an 85 on my flour cab initially and had to switch to a 190cfm kitchen type ceiling exhaust fan from home depot. it works great and was under 50$. here is my stealth cab