What equals a good skimmer?

I will have a total of about 75 gallons of net water in the sump and display. If my skimmer is rated for 80 - 120 gallons and I have a very low bioload (2 false percula clownfish), would my skimmer be good enough?

Or is a good skimmer the next size up? I want to start full zeovit but am not sure if my skimmer is good enough.