hi my husband bought me a 3 gallon glo fish tank for christmas. it has been set up for a week now. so today we went to a pet store but they werent very helpful and didnt have any glo fish. so i bought 3 penguin fish and 2 glass catfish. later on i went to a better pet store where they gave me better help. but also adviced me that my fish would probably die. i was just wondering how many glo fish can live in a 3 gallon tank and any other advice would be helpful.