I have started a 20 gallon reef...
I have 2 ocellaris clowns, a sixline wrasse, a yellow watchman goby, and a barnacle blenny. Then I have 20lbs lr (so far) and 24lbs lace rock.
I've got a 65 watt 50/50 light fixture and I added some green mushrooms a couple days ago. They seem to be doing fine and are fully expanded.
Everything's goin fine so far.