Well if your looking for good growth and a 14k look here's what i'd do. From front to back i'd go with a ati blue+, uvl super actinic, ati aquablue, ge65k, blue+, blue+. If you want more of a 10k look, then replace the second last bulb with a aquablue. regardless, all thes bulb's will give you great par and growth besides the actinic.