My friend has recently gotten me a goldfish for valentines day. My friend Not knowing anything about fish put it in a small tank probably five gallons its never been cycled has no filter. I am unable to get a filter for it until next weekend and I have been doing about 3/4 water changes every day. It seems to get a lot and I'm concerned about it living a short life or dying painfully. I have looked everywhere and cant seem to find anything about what to do.