I'm using 250W DE PFO
mini pendants screwed to the bottom of my hood. Thing with them is they have a small foot print (7.5x12") so you could mount them if a way that would allow you to place PC or T5s between for actinics or dusk/dawn. Reef Optix IIIs are similiar in size.
Could also do multiples of a combi pendant, PFO
Acrolight is one.