Lighting recommendations for large sump/fuge (230gal)

[Kronk]

I would go with making your own fixtures with CFLs would be cheaper in the long run and a lot more flexible. You will likely need more than two probably maybe 4 to 8 single bulb fixtures for coverage. I wouldnt worry too much about the center getting direct light you will get a lot of reflection.

I gotta ask if your sump is 230g how big is the Display?