We run both T5s & LEDs. I'd continue to use both fixtures. The T5s with enhance your growth rate and the LEDs will give you a nice pop. The T5s will also give you some bright colors. If you were to use LEDs alone the colors can appear to pop well but if you have ever moved a nice bright coral from a T5 or T5/LED combo under a LED only fixture, compare it side by side to the same coral under LED only, & you will know exactly what I'm talking about! It's the best color up you'll get.
We also run our T5s on a shorter cycle. Too much light isn't a good thing either!