thank you.
growth rate is great, but i think growth rate has to do more with water quality then it is with lights. It is proven that any light can grow sps from led, halides, to t5. I feel as though t5 can help produce better colors but thats only imo. When used over wild rainbow acans, t5 are known to help maintain their colors were halides and led will morph the rainbow acans to unpleasant colors.