So i got a new piece of driftwood from the pet store that has been treated ans=d is safe for fish, bla bla bla...but since putting it in the tank a week ago it seems to have grown some kind of semi-transparent fur around most of it. :uhoh: Anyone know what it is? It hasn't seemed to affect the fish at all, but it looks kinda gross. I will try taking it out of the tanks and brushing it all off before replacing it but if it grows back i may have to get rid of it, it looks that gross.