Is the blues bar the actinic one? The bulbs in the T5 fixture look to cover the spectrum well, I'm worried about intensity, but if a light bar can provide additional colors that help my corals grow and pop, then I'm all for it. Id also like to keep RFA, so lighting is something I need to make work.The blues bar. I’d try to get one the size of the fixture. A little shorter won’t hurt if price is an issue.
The t5 will likely provide the white side of the spectrum I assume.