How do you feed your fish?

[hummer]

I have a typical setup consisting of a main display with overflow and sump. When I feed my fish I turn off the pump so the food doesn't escape through the overflow. Since my system syphons back a few gallons, I also have to adjust the airflow to the skimmer because the increase in water volume in the sump will cause it to overfill.

Just wondering if anyone has any tips/tricks that they use when they feed their fish without turning off the pumps?
The reason I'm asking is that I want to improve my process and make it easy for someone to take care of my system while I'm on vacation for extended time.

One way I thought of was to drill some holes in the return pipe in the tank to stop the water from syphoning back down.
But any other sugguestions would be great!

Thanks