Sailfin Tang - Hole side?

[reefnewb70]

I noticed my tang swimming funny. I have had her three weeks. She has a spot on her side and spots in her one fin. Any ideas??
She has never been a big eater. She likes seaweed and she isn’t an aggressive mysis eater.

 

[blaxsun]

#fishmedic

 

[nereefpat]

Any chance you could get a picture in white light?

 

[Sebastiancrab]

The fish medic(s) are going to need better pictures taken in white light and your water parameters. What meds do you have on hand? Do you have a hospital tank?

 

[Jay Hemdal Verified Community Expert]

I noticed my tang swimming funny. I have had her three weeks. She has a spot on her side and spots in her one fin. Any ideas??
She has never been a big eater. She likes seaweed and she isn’t an aggressive mysis eater.

Hi,

As the others said, we really need pictures and video taken under white light. We also need more background information - how long you've had the fish, what tankmates are in with it, etc. This post outlines how to do that:

Some Helpful Hints When Posting or Responding to Threads in the Fish Disease Treatment and Diagnosis Section

Aquarium Fish Disease Problem Solving Determining the best course of action for a problem with your aquarium can be a difficult task. Even advanced aquarists will often need to seek the help of others for complicated or unique issues. Our intent here on Reef 2 Reef is to offer expert advice...

www.reef2reef.com

From what I could see, the fish's pectoral fin is damaged (that's why it is swimming like it is bobbing). There is also some lesion/injury on its side near that fin. Did this come on all of a sudden? If so, I would say an injury. If it grew gradually over days, then it is more likely an infection of some sort.

Jay