Clownfish pushing against glass

[reefSF]

My clownfish keeps swimming its face/mouth against the glass as if it's pushing on it to try to swim through. Is it irritated on its face or just normal clownfish behavior? I also just saw it try to rub it's face/mouth area against the rock too. It recently developed a bunch of dark spots on it but I thought it looked like clownfish hypermelinization.

 

[vetteguy53081]

My clownfish keeps swimming its face/mouth against the glass as if it's pushing on it to try to swim through. Is it irritated on its face or just normal clownfish behavior? I also just saw it try to rub it's face/mouth area against the rock too. It recently developed a bunch of dark spots on it but I thought it looked like clownfish hypermelinization.

Not abnormal for a clown and may be playing with its reflection trying to show aggression towards the imaginary clown in its reflection

 

[jabberwock]

Trying to push the tank off the stand, escape plan!

 

[Jay Hemdal Verified Community Expert]

My clownfish keeps swimming its face/mouth against the glass as if it's pushing on it to try to swim through. Is it irritated on its face or just normal clownfish behavior? I also just saw it try to rub it's face/mouth area against the rock too. It recently developed a bunch of dark spots on it but I thought it looked like clownfish hypermelinization.

Looks like it is just battling it reflection. You might be able to tape a piece of dark paper on the outside to cut the reflection.

The larger one is pushing the glass slider around a little, keep an eye on that so it doesn’t get worse.

Jay