I'm not into chemistry, so I'm curious whether ammonia, nitrite and nitrate are soluble in water. May be they will form a compound or mixture, anyhow, for an example, will it be more effective in reducing ammonia, nitrite or nitrate by removing partial amount of water from say the bottom level of the tank if it has higher density than water? It sounds like a weird question, but I'm thinking of making my regular water change more practical.