So I just came home from the pet store a few hours ago with my very own new Betta fish I have named him King Arthur i bought all the works they said to get him i however only got him a 2 gallon tank with a filter and light. it is nicely furnished i must say. King Arthur was acting sluggish so after i got the water to perfect temperature and transfered him i gave him 2 blood worms which he ate quickly he has been swimming around his fish bowl happily i hope. it looked like he was getting a mane for a while his fins around his head kept flaring out. back and forth it wasn't doing that before and i was a little concerned as it is my first pet fish since a horrible goldfish episode when i was young and i want to take the best care of King Arthur i possibly can.. If anyone can tell me if the flaring is normal that would be great.