Recommend a good auto- feeder
Are you going to want to continue to use the feeder while you are at home? If so I would suggest a good quality feeder that has a connection for an air hose so the food doesn't clump, also a feeder that uses a crock screw style aperture to dispense the food is ideal. If not, get some of those feeder blocks from the fish store, yeah it's not the best thing for your fish to eat but for a couple of dollars you cannot get a better solution.
I have been looking into getting a quality feeder myself, I am looking at the Eheim 3582, Rena 707 and the Life Guard Intelli-feeder.