[kamilkaze13]

Hey, so I got this male Betta yesterday from Petsmart and he looks very healthy to me, but his fins are twisted and he doesn't flare. I'm keeping him on this 0.5 gallon tank for a week or so till I get a 2 gallon tank and his water is at 73 degrees. Any idea of what is happening to him or how to cure it? Thanks a lot.

 

[freeflow246]

The twisted fins could be warping from the poor water quality at the pet store. Do you have a picture of him facing sideways, where we can see the fins better?

As for not flaring, pet store bettas get used to seeing each other and often stop flaring. He may start flaring again in a few weeks, or he may not. Some of my bettas never really flared.