Guppy sick

[Ktrnvitale]

Sorry dismiss this post I'm new.
I'll repost with the correct information

One of my guppy fish I've raised since birth is dying. He's 1 1/2 years old. he sits at the bottom shimmying has lost weight. His tail is shredding. My other fish are doing fine. Thinking he didn't adapt well when I transferred them all to another guppy tank (due to a surprise baby birthing). Any ideas what to do for him? Or what's wrong?

 

[Delapool]

Any improvement with your fish?

 

[Matt68005]

Pin tail is a disease of weak guppy fry. I would let it play out and take the strongest survivors and treat them with methylene blue in a unfiltered tank with the heat turned up to 82ish.