Please help. My water is extremely cloudy, the gravel is tinted white and my glass has some sort of film on it. About three days ago I saw that my tank was a bit dirty. I did a water change of about 25% and let it sit. I put about 1 ml of API water conditioner in every 1-2 liters. Later I saw it it was slightly cloudy so I did about a 15% water change and have been doing them every day for the last three days until two of my beloved cherry barbs died. I stopped water changes and need help.