Halfmoons only have more brittle fins then the other types of bettas, nothing more. As for making them flare I don't know about that. Honestly most of my Bettas never flare when I put a mirror up, they are toobusy wanting food form me haha. Plus I would never make them flare for an hour, that stresses the fish out more then making them stretch their fins(which in itself is a joke. If a fish needs to do it then it will).
I never EVER heard of exercising a fish :-/
edit:Oh and don't do 100% changes daily, it is a waste of water. If they are in 2 gallons and under do 100% twice a week. 5+ can be 25-50% a week when cycled with a filter.
Last edited by Angelmonster; 07-04-2009 at 01:28 AM.