Fish swimming on their side?

[Oli]

Hi guys, I’ve noticed recently a few of my Cherry Barbs have been swimming at a bit of an angle as opposed to up right vertically. They seem happy and are swimming around as normal, could this be swim bladder? Have attached pics

 

[Colin_T]

Can you post a video of them doing it?
Upload the video to YouTube, then copy & paste the link here.

 

[Bruce Leyland-Jones]

Hi guys, I’ve noticed recently a few of my Cherry Barbs have been swimming at a bit of an angle as opposed to up right vertically. They seem happy and are swimming around as normal, could this be swim bladder? Have attached pics

Where is the strongest light coming from? Fish tend to orientate themselves to the strongest light source.
Early in the morning, when the sun is shining through one end of my tank, any fish in that area swims at a 45° angle.

Or at least my Black Neon and Glowlight Tetra do...the Golden Pencilfish and Pygmy Cories, not so much.

(I'm sorry, but I really do dislike that tank set-up...it looks so artificial and awful, but I appreciate that you like it).

Edit: Penultimate sentence added.

 

[AdoraBelle Dearheart]

Are those starfish real dried starfish? Or are they fake tank decor? Not asking for aesthetic reasons, wondering whether you have real marine decor like shells and dried starfish, which perhaps could be affecting the water chemistry... Have you added anything new to the tank in recent months?

Along with the youtube video (actually being able to see the way they're swimming can show a lot), if you could copy paste the template below and answer as many questions as you know, it helps people get an idea of what may be happening in your tank


What Others Need to Know to Help You

When posting a request for help can you please include the following info

1. Water parameters. (ammonia, nitrate, nitrite, PH, temp', Hardness etc)
2. A full description of the fishes symptoms.
3. How often you do water changes and how much.
4. Any chemicals and treatments you add to the water.
5. What tank mates are in the tank.
6. Tank size.
7. Finally Have you recently added any new fish?

You may cut and paste the template below and submit in your post:

Request Help

Tank size:
tank age:
pH:
ammonia:
nitrite:
nitrate:
kH:
gH:
tank temp:


Fish Symptoms (include full description including lesion, color, location, fish behavior):

Volume and Frequency of water changes:

Chemical Additives or Media in your tank:

Tank inhabitants:

Recent additions to your tank (living or decoration):

Exposure to chemicals:

Digital photo (include if possible):