I've had this driftwood log in my salmander home for a few years now. Recently I noticed little crawlies (mites?) living on it. They didn't seem to bother the sallies, but I did not like them in there. So I tried baking the log for about an hour at 250 degrees. It sorta solved the problem, but it was replaced with fungus. so I soaked the log in about a 10% bleach solution. Figuring that would kill anything bad. After rinsing it forever, I let it dry. But the mold came right back.
Should I bleach again, and maybe dry it in the oven? I also have access to an autoclave, but I see bad things happening with that. Or should I just give up and buy a new log. Or maybe one of those rock they can hide in?
I am in desparate need of suggestions.
The specifics: 2 tigers, 1 spotted, & a fire belly toad (living in harmony for 2.5 years), 30 gallons, small gravel substrate, and 1/3 of it is water where they go for a dip if they choose. Cheapo duetto filter, but I do bi-monthly clean-ups and always remove feces and shed skin upon first sight? The point is, I've done it this way for years, and this problem only developed recently.

