overskimming???

[fiorano]

so i am now upgrading my mantis tank to a 30 gallon with a 20 gallon or possibly 10 gallon sump. i was thinking about buying a tunze 9002 skimmer or something but nor sure if this would be enough. i already have a euroreef rs135 in my basement i havent used in a loooong time ha ha. does anyone thing that is a possible option or is that way to overkill for this system?????