Leaving my pet Feeder Goldfish

Question
Hello.  My parents and I are going away for the weekend.  We won't be home for 2 1/2 days.  Is there a way I can ensure that my pet fish will survive without having someone come in to feed it?  Is there a feeding method that I could try?  Thank  you.

Answer
ummm there are a lot of methods........ you can buy an automatic fish feeder which are like $25 or, you can buy a thing that floats and youput food in it and then it sits, or you can feed it a lot the day you leave, because they  tend to eat there own fecies