I have been researching nano reefs on the net for about a year. I found a lot of nice setup using a variety of tank all with light mods. the most common seem to be the mini bow by all glass. 2.5gl, 5gl, and 7gl,
the lighting on these tank stock are incandescent screw in for the smaller two and t5 14 watt for the 7gl. I know some soft coral like mushrooms can survive with the 2 watt per ga of the 7 stock. but I found that Alamo pets has a 20watt screw in 50/50 with I did buy to try in my 10 gallon salt with had 2 10wat comp fluorescents. the one 20 is by far brighter then the 10watt know knowing this, if the 20watt will fit the mini bow 5 that would give me 4watt per gallon if the bulb will fit because it is longer and larger in diameter then the 10watt.

What do you thing or has anyone done this yet.

My current tanks are
3yr old 10gal salt
2yr old 55gal salt
6m old 20t salt

10gl fresh
20l fresh