any suggestions on my nano setup?

[spikehs]

Due to having no money (stupid university) I am going to be taking down my 50gal tank and seting up a nano. The dimensions are going to be 18x18x18 (25gal). For lighting I will be using a combo of 24 inch vho and no bulbs to give me about 8+wpg. Seeing as how the tank is only 18" front to back, I was going to get a fuge built into the back (6x18x18, about 8gal) which will be lit by the lights on the tank. I will dose kalk for top off. I plan on having 4 holes drilled in the back (2 on each side) hooked up to a sqwd for some random water motion, I plan on using a 500gph pump so I can have up to 20x turnover if I want. I figure this will give me a good setup for softies, my rose, and some low level sps... Any suggestions before I finalize things?

thanks.