Never tried it with a full spectrum fixture. I might take your challenge on that if I go Radion Pro.
However, I bought this 72" Giesmann Spectra years and years ago before the Elos 160XL thinking that I was going to get a 6' tank that I'm dying to use. I'll be running the legendary Radium metal halide. If I don't like it, I will swap out the internal components and mount the LED in the fixture. I just got to experience the Radium.
Anyway, I got bored of the tank and how everything is growing and coloring so I decided to spice it up a little. Got angels in the tank and now my SPS are bald(No polyps extension) due to nipping. Now it's fun to decide if they're worth the bald SPS for them and how I should master mind a fish catching technique. I love this hobby.
Just look at all the fish. How exciting!
Yes, that's a pair of masked swallow tail angel. And a pintail fairy wrasse at the end.
[YOUTUBE]316OMpcwxPs[/YOUTUBE]