I like the look of the water with the radion.but I love it under halide. Less shadowing. I could have solved that with another radion but on a 24" tank it's pointless
I didn't care for that much shimmer of the led
Growth rate for me...some pieces grew under led some not so much. But I will say growth has double under the halide.
As for color. I am seeing more color with the halide. Plain and simple. I have one piece that was green under the radion and now is blue violet with green and yellow undertones. So nice I had to name it
I do miss the amount of blues I can add with led but its a factor I can live with or fix.