I just got a new betta for a few days now and I have a quick question. He never flares and I am just wondering is it because he isn't used to the new setting and is stressed and will begin flaring later on or do I just have a really shy fish?
Some bettas will flare at anything and some wont flare at all. Thats why bettas are fun to keep, they have so much personality :)
If you put a mirror up to his tank he might see his reflection and flare at it lol.