Other cool fish I would recommend include ...the yellow canary (fang) blenny and a red elongated dotyback. Both are fairly small, fairly non-aggressive, and fun to watch because they are always foraging for food in the rock.

I would like to try one of the captive bred mandarins too...but haven't yet. Previously having one of these wouldn't have been possible in a small tank. But again, they are a little spendy.