I'll be going on vacation for a week and I have two goldfish in a 120G. I live with my parents and they aren't comfortable letting someone come in a feed my fish daily. I'm planning on doing a water change before we go but I'm not sure about feedings. I heard goldfish can last two week without food but I'm not sure if it's true. I was thinking maybe giving them some fresh food like spinach which usually last them a few days so they aren't starving for a whole week. If not is an auto feeder worth it? I need more experienced advice as I'm a newbie.