true. I guess the problem is that they generally only life brief lives. Had they lived to 10-20 yrs we would have a better outlook as to what keeps them healthiest. but since they all die young, whether its in a teacup or a tank (10g) filtered we will never truly know what they exact needs are. dont get me wrong, I have my betta in a cycled tank, however on moving day, he gets dechlorinated water and the filter starts. But beeing a more tropical man, I prefer to get a fish in a cycled tank, but desperate times call for desperate measures, and i'm just glad that a betta can handle what most fish cant