Sick Guppy : White bubbles :(

[hendr1x]

Hello everyone,
I have a 60g tank that I just noticed had sick guppy in it. She has been removed and put in a 10 gallon tank for now. All other fish (3 guppies, 8 mollys, 6 silver dollars, 8 tetras and a plecko) look perfectly health/happy.

I had a really hard time taking a photo while she was in the tank. Hopefully the attached images are good enough. I will try linking to high resolution images in a reply post but I don't think I have permission / it will block me.

Thanks for any help you can provide.

 

[hendr1x]

High quality images : https://imgur.com/a/TPK3N

 

[hendr1x]

I dosed the quarantine tank with Tetra lifeguard.....because I wasn't sure what the issue was and that seemed to treat a ton of things. I will watch my main tank really close and hope that everything works out.

If anyone has any suggestions or can tell me specifically what is wrong with my guppy I would appreciate.

 

[Matt68005]

Tail rot, causes, stress, poor water quality.
Do water change and ignore it
Specfic causes are pseudomonas, aeromonas, vibro bacteria
Antibiotics would be the cure, but since its only one fish, dont bother