Plowboy91
Aquarium Advice Apprentice
I have a large tank that I recently filled up and only have driftwood, gravel, some rocks and plants in and there is black slime or some kind of black water mold growing on the wood in some places. It just sticks to the wood and when it is rubbed it floats around the water. If you try and take it out of the water it looks kind of stringy like a slime. Does anyone have any advise or experience with this? I would like to begin transferring some of my fish from my other smaller tank to this one but I am unsure how this black slime will affect them. Any help is greatly appreciated! I have attached pictures so hopefully they can help explain what it is.