Flukes or fish getting attacked?

[JWellisley]

Hi All, I’m new here and to the saltwater community.
I have three anthias, one of which started swimming in an upwards direction in the front corner of the tank, about halfway down 1/4-1/2 down the tank. He has a puffy white line on his side, and today it looks like there may be another small one next to it. Sometimes he is swimming normal, but keeps to that corner pretty much other than at night. He is eating. I did noticed yesterday it looked like he yawned. I’ve only seen this once. I have seen one of the other anthias go after him at times. so wondering if it’s flukes or from aggression.
I have prazipro coming today…should I dose, do I need to get my clam and anenome out when I dose. This is a 90 gal tank with sump filtration, in tank uv filter, 2 wavemakers. Will I need to provide more oxygenation to the tank if I need to dose?
Here is a picture from yesterday, I’m sorry it’s a little difficult to see.
thank you in advance for your help!

 

[Fish Think Pink]

Sorry to hear this is going on. There is another area of Forum that can help with Fish Disease questions:

Fish Disease Treatment and Diagnosis

A forum for discussing treatment and diagnosing saltwater reef fish.

www.reef2reef.com

This is from this section, and even if you update this thread with its suggested helpful hints, then will help others better help you:

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