A couple weeks ago I got a secondhand enclosure for my new green iguana, which came with a magnificent centerpiece of a large branch of some kind of wood: Yesterday I noticed mold starting to grow on patches of the wood ALREADY! And I haven't even piped in a humidifier yet! Just been misting ~3x day, humidity stays around 20% with brief spikes to around 70 right after a misting. I'm surprised at how bad it is already - especially because when I got it there was no visible mold, plus I know it had been used for some time before when the enclosure previously housed a snake. Since there was no problem when it belonged to a snake, I didn't expect such an immediate problem with my iguana (although maybe the previous owners just never misted for their snake?). At first I thought the wood was mopani, but now I suspect it may be grape wood. Is there anything I can do, or should I just give up now on this piece of wood since its already so bad and I only plan on making the enclosure MORE humid? Is it very dangerous for my iguana to be in there with the mold right now or will she be alright for awhile? I can't afford to replace the branch immediately and there are no other decorations or anything for her to climb on right now so I'm hesitant to take it out but of course I don't want her to get sick. Btw the enclosure is glass and I think melamine, with 4 three-inch circular vents drilled across the back panel for ventilation. I appreciate your help!