Recently I've set up a new aquarium and have been cycling with fish food. Some weird stuff has been been forming on the driftwood and on the food. There seems to be two types, but I'm not sure if the brown one is just the white stuff that picked up pigment off the wood. In any case I nee o know if it will harm plants or fish and how I can get rid of it UGRENTLY. I've attached some pictures below Thanks in advance! First Picture: White stuff on food Second Pic: Some brown stuff swiped off on my finger Third Pic: Brown stuff on driftwood Fourth Pic: White stuff on driftwood Fifth Pic: More white stuff on food (with black sand on it)