robocop
Aquarium Advice Activist
I have this brown crud floting on top of the water in one of my tanks. Even when I do water changes it's still there. It just floats there and when I stick something in the tank and pull it out it's completly covered with it. Any idea of what this is and how to get ride of it? Oh...and what's causing it? It's not that visable but I can tell it's something....especially on a test tube.