Actually your PC's are even enough light for a BTA, but the T5's would be better for most other stuff, even sps.
At least your BTA won't be looking around for more light for sure, and maybe even will look for a shady spot depending light intensity.
I went from 10K bulbs to 14K and my nems do seem to like that better, better color on both.
I'm a fan of the Current USA Outer Orbit myself (MH T5 combo)
Not sure about T6