Is this mold ok?

[awelcome]

I tried to search around for what the dreaded grey mold looked like, but wasn't getting much from my searches. I have some of that cotton candy whitish mold I posted earlier on my magnolia leaves which you already said was fine. But today I also started noticing mold on my woods. The main dark piece of wood is I think mopani, purchased from pet store and soaked in treated boiling water. I noticed some white spots on that today that MIGHT be mold, but when I sprayed the tank the wood got dark again and it's hard to see so I will try to get a pic of that when it dries up some again. But perhaps more concerning is the other piece of wood.... the stick-like one that I got from Josh's Frogs which I THINK was Manzanita.... it has what appears to be a darker mold that I might say was green, but then again it could be greyish, since I don't know what grey mold looks like. I tried to get a pic of it but it's hard with my phone. In the last pic I was shining an LED light on it to try to get a better shot. Do you need better pics?