Originally Posted by Opie x fury
Thanks you...and not harmful right
Im sure someone, somewhere, at some time, has had a mouldy/fungal growth on their driftwood that was harmful, but that would be very unusual.
If you are concerned, remove the wood, boil it. Remove everything affected from the tank and bleach treat it before re-setting everything up.
I cant tell you how risk averse you need to be, all i can say that it is normally harmless.