Not sure what the bugs were that were on him. But do you have copper in your QT? If there are bugs on him, that will kill them. It takes a few weeks to really do the job. You could try a freshwater dip, although I would wait until you get a few others that suggest this. if he is stressed this might not be the best way..(fresh water dip)... Not sure what else to suggest. I would recommend trying to identify what kind of bugs were on him. There is a post on this site with some photos of hitchhikers. Also try doing a search of "pods" There are plenty of photos with great info. Good luck and I hope the Lion survives.