My younger brother and I were at a local carnival and I let him play some of the games while I went on a ride. When we met back up, he had a bag of water in his hands and I knew that he had just won a feeder goldfish. I currently do not have the money to afford even a betta tank setup since I recently set up a new 10 gallon. I don't want to let the thing die as it looks very healthy for a carnival goldfish. Any suggestions for a makeshift tank? If I can find something that he can live comfortably in for at least a few months, I can put him in a 90 gallon living room fish tank when we purchase it. Would a bowl be ok to start? a 5 gallon tank?