Congrats on your growing mantella nation lol. I plan to get a much larger terrarium in the near future after I get a feel for it via this smaller unit. The fungus is on some wood so I will leave it alone to see what happens unless it gets out of hand. I have included a link to a new video I just finished. I intend to do a better one as soon as the frogs have settled in a bit with better image, audio and info.