Newborn baggian cardinal fish uppwards, swim

[Papleslie]

Newborn baggian cardinal fish bouncing floating! What could be the problem? They swim upwards constantly because the bladder doesn’t work I think. What can cause this disorder?

Sorry English is not perfect, but I am learning! Thank you for your answers!

 

[ichthyogeek]

So are they congregating near the surface of the water, and trying to stay there?

Or are they at the surface of the water and visibly trying to move downwards?

Or, are they at the bottom of the water column, and trying to visibly move upwards?

 

[Papleslie]

So are they congregating near the surface of the water, and trying to stay there?

Or are they at the surface of the water and visibly trying to move downwards?

Or, are they at the bottom of the water column, and trying to visibly move upwards?

It's all true! If you don't swim, you'll sink. Heavier than water! He swims up and then rests. It sinks if you don't swim. And he swims up again.
It looks like swimming bouncing up / down from the side!

 

[ichthyogeek]

Hmmm...doesn’t really sound like any -air bladder disorders to me. Just typical banggai cardinalfish fry being banggai cardinalfish fry.

If the fry were on the bottom of the tank, and could not swim to the surface, I would attribute it to a deflated air bladder.

If they were actively trying to swim down and floating back up, that would tell of too much ingested air.

Can you send a video of the tank, so I can confirm what’s going on?

 

[Papleslie]

Hmmm...doesn’t really sound like any -air bladder disorders to me. Just typical banggai cardinalfish fry being banggai cardinalfish fry.

If the fry were on the bottom of the tank, and could not swim to the surface, I would attribute it to a deflated air bladder.

If they were actively trying to swim down and floating back up, that would tell of too much ingested air.

Can you send a video of the tank, so I can confirm what’s going on?

Unfortunately they don’t live anymore, I don’t have a movie.
The fish are vertical in the water. Their heads up! Their bellies are flat and slender. If you don't swim, you'll sink. If it swims, it rises.
- Swim up, rise. 2 seconds
- Take a break, you'll fall. 2 seconds
- Swim up, rise. 2 seconds
- Take a break, you'll fall. 2 seconds
And so on, they bounce.

An average family is 30% healthy. They swim nicely in a horizontal position. They are developing nicely.
70% swim up, bouncing motion, not developing, sick.

 

[ichthyogeek]

Unfortunately they don’t live anymore, I don’t have a movie.
The fish are vertical in the water. Their heads up! Their bellies are flat and slender. If you don't swim, you'll sink. If it swims, it rises.
- Swim up, rise. 2 seconds
- Take a break, you'll fall. 2 seconds
- Swim up, rise. 2 seconds
- Take a break, you'll fall. 2 seconds
And so on, they bounce.

An average family is 30% healthy. They swim nicely in a horizontal position. They are developing nicely.
70% swim up, bouncing motion, not developing, sick.

Ah I see. I think I may know what might be going on. What are you feeding the fry?

 

[Papleslie]

Ah I see. I think I may know what might be going on. What are you feeding the fry?

Freshly hatched artemia. But they swim like that the first day!
Very important information:
- If a fish doesn't swim well the first day, it never heals.
- Any fish that swims nicely horizontally on the first day will never get sick.

 

[ichthyogeek]

And what are you feeding the parents? Are you enriching the artemia with anything? Can you show us a picture of the setup?

 

[ThRoewer]

How old are they?
Did the father incubate them in his mouth until release or did you incubate them externally? In the latter case, they may not yet be done with their development.