I have a small 20gallon sump on my 55gal and would like to convert the sump into a refugium. What type of lighting should I use?
I've seen just plant grow lights used so you may want to look into this option. Just be careful on the water damage and the rusting of the fixture in the long term useage.
Using my old PC setup to light mine.
The LED lights that I just picked up would make some good refugium lighting.