Over the past three days my water has become cloudy white. The mechanical filters when I clean them are slimy. My Skimmer is going nuts working like I have never seen it work and the stuff that is coming out of it smells worse then anything I have emptied before. I have checked my nitrates, nitrites, and ammonia all are zero. Phosphate is very little, (will be fixing that today). I have done a 15% water change also. Nothing at this point has helped clear up the water. I was wondering if I have a algae bloom problem or if it is something else. The tank has been running for 10 years. Any thoughts would be appreciated.