Looking to add a new fish to the 29 biocube. Current tank mates are a clownfish, firefish and mandrin. Im looking for something that has personality and is active. Basically I need something that swims around lol. Both my firefish and clown just kinda hang out in the same spot all day and the mandarin is active but is usually behind all the rock work eating pods.

So the rules:
1.Active
2.Reef safe; sps lps and softie friendly
3.Doesn't hide all day
4.Wont compete with mandrin for pods
5.colorful
6.wont outgrow the biocube
7.compatible with the fish I currently have
8.Doesn't require a house mortgage to buy

So lets hear your ideas!
P.S. I farm pods, my mandrin is fat and healthy no need to give me "the lecture"