My fish got sick

[alper]

There is something like white smoke or mucus on my fish, what is the reason?

 

[Gumbies R Us]

#fishmedic

 

[Jay Hemdal Verified Community Expert]

There is something like white smoke or mucus on my fish, what is the reason?

Welcome to Reef2Reef!

This looks like it might be Brooklynella but we need a bit more information;

How long have you had the fish and how long have they had symptoms?
What are any water quality test results that you know?
Are the fish still eating?

Most importantly, can you please post a clear video of the fish under white lights? Hosting on YouTube works if you can’t upload directly here.

Thanks,

Jay