i have 2 occ clowns and a firefish in my tank..they all love each other..i would really suggest another clown its really rewarding having two IMO
..a 6 line wrasse i would add last if you plan to stock a few more fish..they can be semi agressive and pick at new comers..especially in a 29 like ours. but like i said look up a firefish! my clowns and firefish hangout all the time..also maybe a yellow watchman/pepermint shrimp combo is a cool addition..
my stocking list
so far i have
2 oc clowns
plan to stock in the future
yellow watchman goby/pepermint shrimp combo
6 line wrasse