Help With My Guppie

[matthewkeogh50]

This morning I woke up to find my orange and black guppie looking very I'll its back fin has turned see through I have moved him to a different tank help any one

 

[UpSideDown]

It's back fin turned transparent? Don't worry, it happens. It happened to my guppy once. And when you say 'it looks ill' how does it exactly look?

 

[matthewkeogh50]

Just really life less it sits in one place and IT seems to have lost its colour if you get what I mean