This is a picture of a 29 gallon saltwater tank that I had running for several years.
This is a picture of a 10 gallon mini reef. Lighting is provided by two 27 watt PCFs.
The two photos above are of the same (mini reef) tank taken May 17, 2002. The brown stuff is not algae, but a type of Xenias that does really well in this tank. The pair was purchased together several years ago (at Fish Ranch on Hilcroft).