Not sure what happened

[Mr.Goby]

Woke up this morning yellow tang lying on his side find torn. Not sure what to do... moved him to 911 tank

 

[lakai]

Any more specifics ? The tail looks more like fin rot than signs of aggression. I would recommend just leave it alone for a few days with the lights off and if the other fins start to tear like its tail it would be time for anti-biotics.

 

[Mr.Goby]

Thanks! His other fins do look the same just cant see it in the pic. What antibiotics would you recommend? What could have caused that? DT is cleaned every third Saturday si the tank is cleaned.