Hey just put my response in your thread. But i want to give you my personal advice based on my experience with bettas. One of my betta is 3.5 , others bettas ages from 1.8-2.5 years old. I don't cycle the tanks because i don't like to cycle, i do regular water changes like i wrote in your thread. I have 2.5 and 5 gall tanks. If you have any questions please let me know. Good luck