Any ideas of why my water has a red tint to it and more importantly what do I need to do to clear it up! I have a pretty good idea of what has caused this to happen. On Friday, I stopped and bought a piece of mopa wood ( i think that's what is called ) to my tank. By mid day Saturday my tank has a distinct red tint to it. My tank has just recently been cycled and fortunately all I have in the tank right now is 1 ghost shrimp. Is he in any danger and what should I do to clear this problem?