Yellow tang acting suspect. Hitting belly against PVC

[curtcherry]

Take a look at this short clip. No signs of Ich. Arrived yesterday and put into QT. QT mates are one PBT and a kole tang. I see no other external signs of parasites.

Any ideas why it is doing this?

https://drive.google.com/file/d/0BxBLZZVJE4THNkc2WkY1RG52SW8/view?usp=sharing

 

[lagatbezan]

it seems like its scratching itself "might" be a sign of a parasite.

 

[microlady]

This is a sign of territoriality in yellow tangs. Mine slaps at his reflection like this often. Reflections are all over a bare bottom tank. Don't worry unless he exhibits rapid breathing or you see spots.

 

[scooter31707]

Could be the beginning signs, especially with a PBT being in the mix. Are they still eating well?

 

[curtcherry]

Everyone still eating well. There was a Kole Tang in the tube that the yellow tang kept hitting. I moved the Kole Tang to another QT tank and I haven't seen the YT do any hitting since.