Hello everyone, I got some very helpful info about the Serratia Fonticola, from Charlie's former vet. Here is what he said regarding the S.Fonticola in an email.
"This is not a bacteria I have personally treated for. I just did a quick search of the veterinary journals and there is very little information. This has been documented as a cause of disease in some aquatic species including a crocodile, so it is possible that this bacterial could be the source of the problem.
It can be so difficult to know whether the presence of a bacteria actually proves whether that bacteria was causing any disease or not. This is doubly true with fecal cultures since many healthy animals are known to have bacteria that potentially cause disease but are just "passing through". For example, salmonella is known to be present in a large percentage of completely healthy reptiles.
Certainly it is worth trying to treat on the chance it is the root problem, and I hope Charlie responds.
I also know that there has been recent changes in the technology of bacterial identification. For the wildlife patients I treat we are now finding bacteria that had never been documented before. It will be quite some time to know how to put meaning to these newly available results. This may, or may not, be another factor regarding the Serratia."
Charlie has gotten his appetite back, but he has not gone poop since the last time I posted on here that he went. I'm just wondering if he's slowly becoming one of those beardys that don't poop that often.
You can add whatever you want to it.
I know it's a relief to you, not to mention Charlie. He may just be an infrequent pooper. Keep him 
