Ok finally upgraded Ripley to a 3 gallon tank. It has an undergravel filter (I hate those but it was the only option in the size I needed) and has an air pump (stone type). The temp is kept at 78 and he is the only thing in the tank. I also recently switched from pellet food to flakes if that makes a difference. My question is how often do I need to clean the tank or do water changes? I tested before I added him to the tank this morning and everything was right in check, will test the water after he's been in a day or so too. I should also add it is an uncycled tank (I know its better to cycle but tell that to a 10 year old screaming he wants a new tank LOL!) I did run it for about a week before we added him.