My New Nano Tank Journal - 20 Gallons Long Tank

[kipsix]

There's also a 24" set-up that has t5ho to supplement the metal hallide.
Might give you slightly better coverage than a 20" fixture (primarily due to longer t5's).
http://oceanaquatics.com/store/produ...-HQI-T5-24%22/

Could just hang something like that above the tank?