So I am a complete newbie to aquariums. My daughter got a couple of goldfish at a Carnival a few weeks ago and her birthday was a couple of days later so we decided to get a tank. We could only afford to start with a small one (10 gallon) but needless to say the fish only lasted a couple of days. We still have the tank and want to get a few more fish but want to do it right this time. I have seen discussion on other sites about tank cycling so that the right bacteria is in the tank to deal with ammonia and nitrate levels. Any advice would be much appreciated. We don't want to kill any more fish as our four year old was a little upset about her fish dying. Thanks for your help. Also what is a hearty fish or community we can get for this size tank?