Hi all! I have a medium sized terrarium that I keep on my coffee table. It's in a closed glass container and has 4-5 different types of moss, and a succulent (a jade, I think). I put it together about a week ago, and noticed today that there's mold growing in there (the white, fluffy, fuzzy stuff that usually grows on rotting vegetation). However, it only seems to be growing on the one moss (I don't know its name, but it looks like a fern), and is starting to latch on to the other moss around it. I just can't believe how fast this spread. The succulent is unaffected. Does anyone know why this happened? Is there something wrong with the one moss, or is it just too humid in there? I only spritzed it once, lightly, after arranging the terrarium to help the moss spring up. Any help is appreciated!