What is going on with my frogspawn skeleton?

[Jake_the_reefer]

So I have frogspawn I bought that was close to death, it has recovered greatly. It's just a head on some leftover skeleton. But what I notice is that the skeleton has been slowly getting thinner and thinner. I'm afraid it's going to snap off and fall into the sand. Could this be from one of my emerald crabs or my clowns? Any insight?

 

[Jake_the_reefer]

Forgot the image also ignore the slime coming from it. It just ate some reef roids

 

[Saintnovakai]

Osteoporosis?

 

[Jake_the_reefer]

Osteoporosis?

Should I kill it and put it out of its misery? (Not serious)

 

[reef lover]

Not sure whats nibbling on him.but i would snip it off and reglue to another plug.