I would try 2x blue plus, 2x coral plus, 1x whatever their 6500k is and 1x True Actinic. 50/50 mix of C+ and B+ is pretty popular, but it is a bit too blue for me. I like the 6500k and true actinic have more spectrum that the C+ and B+ do not have.
Take all of this with a grain of salt. I mostly use Metal Halides. I have used T5s but not nearly as much. I still use T5s over fuges and some frag tanks, but that is exclusively 6500k since growing things and rendering color is paramount and I don't care how they are illuminated - I can put them in one of the tanks with MH to see that.
Take all of this with a grain of salt. I mostly use Metal Halides. I have used T5s but not nearly as much. I still use T5s over fuges and some frag tanks, but that is exclusively 6500k since growing things and rendering color is paramount and I don't care how they are illuminated - I can put them in one of the tanks with MH to see that.