Sick mandarin dragonet ?

[Etienne 97]

I have colect his poop that look to be some hair of my Bernese Mountain Dog she play close to my tank but does my fish can be stupid to that point

 

[Jay Hemdal Verified Community Expert]

I have colect his poop that look to be some hair of my Bernese Mountain Dog she play close to my tank but does my fish can be stupid to that point

That looks like undigested algae filaments.

Was this angelfish wild caught or tank raised?

 

[Etienne 97]

That is a tank raised one

 

[Jay Hemdal Verified Community Expert]

That is a tank raised one

Good. Some of the wild caught ones are collected with cyanide, and that can cause digestive failure.

 

[Etienne 97]

I thint he might have eat some hair of my dog she play a lot in the same room of my tank