If you get frustrated enough, sell your light and get an ATI T5 fixture. At least then you can rule out lights as an issue.
Try to get a better close up....like the original placement pic where we can really see the tips well.
I will try to get a better picture.
I used to run Radions on my tank and switched back to T5's. LED's can and will work. but you have to find a program that others are using as far as spectrum goes.
I am running the same program as my LFS on the same using the same lights. It runs the same spectrum as the Radion SPS AB+.