In 2 weeks i will be away from home for about 5 days, whats the best way to keep the tank fed?
The tanks lights are already on timers, i would only be worried about the fish getting food.
Five days isn't really a big deal for the fish to go without food. They can supplement themselves on microfauna on the live rock/sand.
Make sure you empty your skimmer before you leave and make sure you have an automatic water topping system!!! The change in salinity in 5 days of missed topoffs in a tank can kill everything...especially if you have metal halide lights.
Could you show a friend or family member what to do and get them to feed the fish while you are away? I am going to FL for a week next month and a friend of mine is going to feed the fish and do the topoffs while I am away. Good luck.