Is My Betta Getting Younger?

I just put my Betta in the community tank and now his colors changed and now he looks like a juvenile. Do you know what happened to him

Here is what he looks like

 

He's stressed, those are stress stripes

So, I forgot to tell you, you should remove him from the tank and try again later

 

He's also a bit bloated I would fast him for a day or two

 

If he’s not Benjamin Button, then no.

 

How do I fast him?

 

How do I fast him?

A male betta should be in his own tank with no other fish, so fasting would be as easy as not feeding him for a day or two. He looks like that because he's stressed. If you leave him with other fish, eventually he'll kill some, or they'll kill him, or both.

 

How do I fast him?

Don't feed him for a day or two.

 

Thank you