Actually centropyges are also good algae eaters, had a couple of them and they greedily consume algae off tank walls and rocks. Plus they are less prone to ich, colourful with fiesty characters and always come in small sizes.
Many many fishes to plan Paul, since your tank is not fully commissioned, do some homework, as mentioned by Ketchup and Digiman, plan properly. Also when buying fishes from reefers do know the history of the tank.
reef on buddy