Bubble above Midas blenny's eye

[Cool Ethan]

This morning I saw what looks like an air bubble attached to my blenny just above the eye. The eye itself looks normal and his behavior is normal (swimming, eating etc.

 

[Homey D. Clownfish]

Maybe he rubbed up against one of the rocks?

 

[vetteguy53081]

This is not an injury but more like an air pocket above eye socket which is weakest part of the fish which is a gas bubble in the bloodstream often causing bouyancy

 

[Jay Hemdal Verified Community Expert]

This morning I saw what looks like an air bubble attached to my blenny just above the eye. The eye itself looks normal and his behavior is normal (swimming, eating etc.

There are three causes of air bubles in fish eyes: (roughly in descending order of prevalence)

1) Eye injury
2) supersaturation
3) bacterial disease

IMO, this looks like a gas bubble that developed from an injury. These sometimes go away on their own, other times they get worse. There is no treatment other than time.

Here is an article I wrote on fish eye diseases:

Aquarium Fish: The ‘Eyes’ Have it: A Review of Eye Health in Aquarium Fishes

Aquarists need to inspect their fish closely every day, for signs of impending health problems. It is much easier to resolve a problem when it first starts, than to attempt a drastic emergency treatment when the fish is close to dying.

reefs.com

Jay

 

[Cool Ethan]

Thanks guys, very helpful!