Bubbles under the mantle Big Derasa

[NAGA]

I have a large Derasa about 14" across that has been in captivity for almost 9yrs. I noticed that it has been getting a build up of bubbles under the mantle in the center of the clam just above the inlet. The clam also as of late has been not opening as much as usual either. The bubble are very small and seem to want to break through the mantle and rise to the top.

Has anyone seen this before and what might be the cause?

thanks in advance

 

[NAGA]

NOBODY SEEN THIS BEFORE?? Anyone that may know of somone that does?

 

[Peabody]

Daniel Knop's book mentioned "Gas bubble disease", perhaps that is it?

 

[NAGA]

thanks Jeff,

I don't know if that is it but, I will have to look it up. Is it fatal? or is there a remedy should that indeed be it?

jeff

 

[Peabody]

Mike H. has my book. I can't remember what it says. Give him a call and I bet he can look it up.

 

[techdef]

derasas & squamosas are a bit more prone to this than some others - when you see the bubbles & they clam doesnt open up all the way? Pick up and shake & roll him around underwater a bit - he'll open back up in a few minutes and burp the bubble out.;