I have a bristlenose who seems to have 'shrunk' since I got a sailfin pleco. This BN is no longer looking very healthy, he/ she is only about 3 years old.

The BN seems to have a kink in its body. I have searched on the net and cannot find anything like this. Does anyone have any idea what I can do to help it? I don't want to take it out and kill it.

I am in the processing of fixing the water parameters as they were a little out.