no meat? lol my discuss would hate you for not giving them their beef heart! and my pink leaf scorpion would kill you ( literally ) if he didnt have his grass shrimp.

blood worms (mosquito larvae) are a natural food for almost all pond fish, like your gold fish. so you should feed your fish!! as you put it. I have never seen a goldfish peal a pea or make a pellet to eat.

from the look of your tank you need a bigger one! you do realize goldfish grow and need large filters to control the amount of ammonia they produce

or better yet maybe you should put them in the freezer until you can properly care for them.