The problem is the bowl! You need to get those fish into a 20 gallon tank. Do you have a test kit? You need to be doing huge water changes on a daily basis, get a good filter system going, get those fish out of there, buy a good test tube based test kit and start testing for all prams. In the mean time, please, start doing research on how to care for goldfish. I know many stores will sell you what you don't need..and the fish will die soon if you do not make some changes
