Reflectors really make a big difference in t5 set ups. For instance a ebay special odyessea fixture 4 x t5 48" fixture has a single reflector and is suitable for most soft corals and LPS but it wont support the more light demanding sps (this is with good husbandry) yet a wavepoint or noveextreme fixture with individual reflectors of the same size and wattage will easily support some if not most SPS. Thats why I ask.
What light is it? Brand etc. and what do you want to keep and i think the community will be able to tell you yes no or maybe on your plans.