Very true! But is it skool or school when your talking fish?Well remember people we are talking about a 29 gallon here no schooling will be going on. I say if you want to do a pair of some type of clown you can but pairs of clowns tend to get nasty and territorial so maybe 1 clown would be better. I had a pair alone w/ a mandarin in a 24 nano and w/ in a few days of being in that tank the mandarin went carpet surfing and 1 of the clowns somehow disappeared so be careful. Mind you all 3 of these fish came from being in a 65 gallon together for about 3 years. So I think your best bet would be 1 clown,1, firefish,1 yellow watchman and maybe something else. You could add a few firefish they are small I'd say up to 3 would be ok w/ a clown and watchman. Then a few snails and hermits, a shrimp and you'd be at your max.