They will definatly out grow it. I have juvenile two band in my 16 gallon right now in within 6 months he has almost doubled in size. I think in another year he will need a larger home. How large are the fish now? Do you already have the tank or are you just considering it? Unless these maroons are very small I wouldn't put them in a 10 even unless you can upgrade withinn six months or so.
i'll be getting one soon... one pet store has them for 60$, one 45, another 30... but for some reason they never have them available..
whats are two good tank partners i can put him w? its for a small 30 gallon.
We have a gold striped maroon clown in our 29 gallon with a bicolor blenny, a yellow tailed damsel, and a chalk basslet. He's just about always at the top of the tank swimming around when the lights are on. They all seem to get along okay.