Clownfish staying in one spot near the surface

[Andreas' Reef]

Hello all,
One of my clownfish has been staying near the surface of the tank and hanging out there like 90% of the time. I'm not sure why this is and I want to make sure this isn't an issue.

some info:

They have been in the tank for about 3 weeks. This behaviour started about a week after being added to the tank.

All water parameters and fine and in check.

All fish in the tank are eating, including the clownfish.

She can still move all around the tank normally but doesn't do it often.

Sometimes she chills on her side, but she is never floating. Her body is almost parralel to the water's surface.

She's not being bullied by any other fish.

Here is a video:

excuse the algae particles floating around, I had just scraped the glass.

 

[Mr. Mojo Rising]

What size tank? What fish are in the tank? Is the water oxygenated?

The video doesn't play.

 

[Andreas' Reef]

tank is 32 gallons

other fish include: male clownfish, springeri damselfish, yellow watchman goby and yes the water is oxygenated and all pumps are working.

Here are some pictures:

What size tank? What fish are in the tank? Is the water oxygenated?

The video doesn't play.

 

[Andreas' Reef]

bump