i got a 20 gallon tank at petco today for 20 dollars!!!! i used my babysitting money. Is a 20 gallon tall ok for goldfish? anyways i just got the tank and nothin else cause i wanted to ask you guys what kind of filter you would recomend. Like what brand and kind (under water, box or outside filter)



Thanks SwimminGoldie

20 gallons is fine for a goldfish or two I would definitely go with an Aquaclear hang on the back filter, they seem to do the best. Make sure to cycle your tank through before adding the goldfish! Congrats, have fun!