Originally Posted by Andrew1113 http:///forum/post/2544902
what light would be the best for a 20 gal frag tank that i would be able to keep any type of coral?
Aboslute best lights for zero limitations would be metal halides. But for a 20g there will be serious heating issues...so I would say go with HO T5 lights...should be good enough for most corals. Just make sure you do your research and maximize light usage by placing your corals in accordance with their light/water flow requirements.