HELP!!!! What’s wrong !

[Shawnfish1122]

I just got home and found my clownfish like this I have no clue what would cause this
View attachment 20260325_174459_B1188D43-8F1D-4871-BAB3-EB0E82C2501F.mov

 

[jabberwock]

How big is the tank? What are your parameters? How long have the clowns been together?

 

[Shawnfish1122]

How big is the tank? What are your parameters? How long have the clowns been together?

15 gal they were paired before I got
they were paired before I got them and have been living great for a month. Basic parameters are all good. I don’t know what could be causing this. I don’t see any external markings that have no clue what could be going on.

 

[vetteguy53081]

I just got home and found my clownfish like this I have no clue what would cause this

Tail is bitten, a sign of aggression. Additionally clown is thin and is likely a victim of aggression and cant see remainder of body to tell if any other injuries. Isolation will give this fish best chance for recovery.
Fish is breathing heavy- is it trying to eat? I dont believe this is a parameter issue

 

[Shawnfish1122]

I just got home and found my clownfish like this I have no clue what would cause this

Tail is bitten, a sign of aggression. Additionally clown is thin and is likely a victim of aggression and cant see remainder of body to tell if any other injuries. Isolation will give this fish best chance for recovery.
Fish is breathing heavy- is it trying to eat? I dont believe this is a parameter issue

It’s the bigger one of the pair though and no other fish are in the tank ?

 

[jabberwock]

Tight quarters for a pair of clowns. I agree with vetteguy. Aggression.

 

[vetteguy53081]

It’s the bigger one of the pair though and no other fish are in the tank ?

Thats correct. The bigger one is often the female and is a result of clownfish hierarchy where the female clownfish are much more dominant than the males. They become greedy and try to eat most of the food that enters the tank (which is one reason the males don't grow as large). They often become aggressive to protect their home which may be an anemone, a nesting area, or the entire tank. If it attacks your hand when you're trying to clean the glass or it won't let any other fish near its zone, you likely have a female clown. Often if you separate the female for a week or two into an acclimation box or sump, there may be a change in her behavior, and you will quickly see the male come out in the open

 

[Jay Hemdal]

I just got home and found my clownfish like this I have no clue what would cause this

How long have you had these clownfish?

I agree that there could be aggression at play here, but the clown on the bottom is breathing super hard and the one above it, for the brief glance I got, may also be breathing too fast. If so, then aggression might only be a contributing factor here - with gill disease or water quality issues being the base cause.