tail damage and sideways swimming

[DrMarrs]

i recently purchased two new fish for my reef tank from a very reputable FS which i have always purchased my fish from. i bought a lieutenant tang and a swallowtail angel, after the first night i noticed the angel is swimming a little sideways and has some tail damage. obviously something was not playing nice. just curious if there are any corals or reef critters that might be causing this harm?
the tank is a 90 gal and well established.

Here are a couple photos
thanks

 

[Longnose Hawkfish]

What other fish do you have in your tank?

 

[DrMarrs]

Just the lieutenant tang, a mandarin goby, and a tailspot Blenny. The rest is all corals and the basics pistol shrimp, cleaner shrimp, blood shrimp. And three star fish.

 

[reesed5]

It could of possibly happened at your LFS. It could possibly be fin rot. That happened to my yellow tang on his dorsal fin.

 

[Humblefish]

Looks to be the beginnings of fit rot (bacterial infection). The swimming sideways could be a swim bladder issue, as Swallowtails are a open water/deepwater species. Do you have a QT?

 

[melypr1985]

I agree with the fin rot. Qt is preferred if you have one.

 

[Humblefish]

I agree with the fin rot. Qt is preferred if you have one.

Where ya been? We've been missing you around here.

 

[melypr1985]

Where ya been? We've been missing you around here.

Working alot, went to NY for a bit and the holidays were in there as well. I'll be getting back to normal starting tomorrow I hope. I'm exhausted! It will be nice to be back

 

[cameronh]

Working alot, went to NY for a bit and the holidays were in there as well. I'll be getting back to normal starting tomorrow I hope. I'm exhausted! It will be nice to be back

Yeah you have been MIA for quite some time now!

 

[melypr1985]

Yeah you have been MIA for quite some time now!

Just busy. It's nice to be missed.... but I missed yall as well. I checked in some as I got the time

 

[cameronh]

Just busy. It's nice to be missed.... but I missed yall as well. I checked in some as I got the time

Lol I notice glad your back