Guys, I want to clean the tank out, using something like a gravel vac but with a filter so I can just recycle the water back into the tank. I did a water change a few days ago but am not happy with how dirty it still is. Anyone know what I am talking about. I am looking for a gravel vac type thing that has a FILTER with it so I can filter the water and re-use it. Any ideas would be greatly appreciated!