The wife and I picked up some Bettas for out daughter for christmas; a female and a male (we were told the two could live together). For the first day, the male chased the female around a little bit, but then left her alone, so I'm not sure if stress and intimidation would still be a factor, but anyways.
She started getting gray spots on one side and began lingering around the same spot. After a few days, she just stayed in one spot, pretty much stopped eating, and now she's losing more color by the day, the gray spots are growing, and it looks like she has a kink in her spine. I have some pictures but they not the greatest - havn't got the knack of water pictures.
We've had her in her own container for two days now, and she's still getting worse. The male is doing great, his colors are getting nicer and he's showing no signs of being sick. They were in a 2 gallon tank with treated water and an air pump. We use betta specific food also. Any help would be appreciated. Thanks in advance.