I've been doing full water changes in my 2 gal about every four days, wiping down and rising everything with tap water. Then I replace everything, add conditioned water, my heater, and my fish. I went to a local pet store to buy an anubias minima in addition to the wisteria in my 2 gallon tank. The guy handling my plant said that I should only do full water changes about every two weeks or so while doing 50% water changes twice a week since I have live plants in my tank to handle the ammonia. He said that when I do the 100% changes, I should keep the good bacteria in my tank by changing the water, and rinsing everything with de-clhorinated water...that's it.
I just researched water changes and I'm finding pretty different results. I know people have differing views, but I'd like to know what your routines would be if you had/have had a betta in a 2/2.5 gallon tank. I figure that I am going to do full water changes every Sunday and do one 50% change every Wednesday. Opinions?