Bizzare Angel Fish Symptoms

[DDOB82]

I have had an angel fish for 7-8 years now with no problems. It is one of 2 in my 3' community. Yesterday morning i noticed that its lips were fully extended with no other symtoms. Had a look inside its mouth and could not see anything. This morning the lips were the same but the angel was feeding normally. I have checked all water perimeters and they have not changed from last week. I have been keeping tropical and marine fish for about 15 years now and have not seen anything like this before. Any ideas or advice will be appricated.

 

[WILDER]

Can you load a pic onto the site of the angel mouth.
Do the lips look swollen.
Could he of damaged his mouth on something in the tank.
Any whiteness or fluffy bits to the mouth,.

 

[DDOB82]

Will post a pic, there is nothing visibly wrong. No signs of fungus, damage marks, it doesnt even look stressed by it. It is feeding normally, and none of the other fish are affected. I have seen similar things with pop eye disease, but he is fine has been for about three days now. Looks like its jaw is locked, i might try and net it, and gently try and reset its mouth, without stressing it to much.

 

[WILDER]

Wrap the fish in a cloth soaked in tank water and ask someone to hold the angel down for you.

 

[DDOB82]

Yeah did that last night, can push it back to its normal position but just goes back staright away. Doesnt look as bad this morning, think it is easing off. This is by far the strangest thing i have ever seen. Its good to bounce ideas of people, thanks for advice.

 

[WILDER]

If the lips are going down he could have knocked his mouth on something in the tank.