Kole Tang Diagnosis

[Bronx19]

Hello boys and girls, my Kole Tang was purchased with a mild spot on its tail fin. This didn't look much, but its now getting worse and the fish is flicking. Any guesses? The fish is alone in a 100g.

 

[OhsCC]

1 vote for bacterial infection.

 

[lagatbezan]

I would agree with the bacterial as well and suggest 10 days of treatment with furan2, kanaplex and metroplex. Must be done in qt.