Hi Everyone, tl;dr Is it really necessary to cycle a 2.5 gallon Betta tank? is this still necessary if all the levels are already fine? This is my first post on this forum but I have been lurking and found a bunch of helpful information about aquarium keeping. This particular question, I couldn't find an answer to, though. My sister bought a Betta on impulse and keeps it in a tiny 0.5gal container with gravel and nothing else. It does nothing all day but sit still at the bottom. I felt too guilty so I took it upon myself (with her permission) to give the little Betta a somewhat better life. The Betta has been living in the fish bowl for a couple months now and I'm kind of antsy to get it out of there and into a warmer and better container -- which brings me to cycling. I have set up this new tank by washing the gravel in warm water, filling the tank with it, dechloronating the water, put in all the decorations, put in the heater the thermometer and the filter. Lastly I poured in the water and got everything plugged in and running. I tested the ammonia, nitrates, nitrites, and pH and everything looked good. I've read that I am supposed to cycle it for something like 20 days, but since the chemicals in the water are already at good levels do I really need to? Many thanks for any advice!