Clownfish with mouth stuck open

[nguyenma]

I didn't notice anything this morning when I turned on the light, but about 8 hours later I came home to this:

(image)

It looks like he's swimming alright but his mouth seems to be stuck open.
There are two red dots (that you can't see very well in the photo) where I think his nostrils are.
I tried to feed him, he looked interested but it didn't look like he could do much about it.

Maybe he bumped into a rock?
Is there anything I can do for him?

 

[mfdrookie516]

not sure on a clown, but i've heard of fw fish getting a chunk of gravel or sand caught in their throat causing their mouth to stay open like that... about the only option for that is a nice long pair of tweezers... i guess the only way to find that out would be to reach in and get it and see. then again, i could be wrong on the diagnosis

 

[melosu58]

Moved to the sick fish forum. How about some water test results?

 

[nguyenma]

nitrate = 0
nitrite = 0
ammonia = 0
ph = 8
salt = 1.021

 

[Aquarium1]

Are you using strips or liquid test kit?

 

[nguyenma]

liquid