What is this stuff?
I have a brownish algae covering my anarachis and crypt undulata, and I don't know what kind it is. I don't think it's beard algae, but it has engulfed almost all of both of those plants, and is also beginning to overtake the water sprite. I attached a picture. I have a bristlenose pleco, 4 otos, and 3 amano shrimp in the tank, but none seem to touch it.