I used coppersafe as directed removed the carbon from both of my canisters and also the temp is at 86 degrees two days ago i salted the tank and had raised the temp i kept the temp at 86 degrees and turned of the lights also , i did all this because one of my beani's had two tiny white spots one on fin and one above the gill area, i wanted to know how long does it take for coppersafe to work, and does it work , also it says the medicine works for a month is that so and if so when do you make a water cghange, and when you change the water do you put more in or do you stop coppersafe after that I REALLY CONFUSED AND NEED MORE HELP BUDDIES