5 gal. aquarium

Question
Can you please recommend what would be the best type of fish for a 5-gal., unheated, filtered aquarium?  And how many would you suggest?  Also, once the fish are in the tank, it is necessary to replace some of the water on a regular basis?  And how often should a thorough cleaning be done?  thank you!

Answer
Hey Vicki,

I do realize that your tank is currently unfiltered. I do recommend you pick up a small filter. Most fish will survive in an unfiltered tank, if you have a small live plant, and keep the water clean and healthy.

Im sorry i didnt make that clearer!