Okay now I have changed 1/4 of my 55 gallons water tank and I have also poured in 3-4 full-caps of anti-chlorine. Also I followed Bomber instruction by adding 10 teaspoon of aquarium salt (not marine salt) and I have installed the automatic water heater and thermometer in my tank, I haven't set the temperature to 27 degrees Celcius cause the fish are still in distress caused by the water replacement. So after they are all accustomed to the new water condition, I'm going to set the temperature but I should not do this instantly right? So how's to "gradually" raise the temperature? Also, I've bought the BLITZ-ICHT with the ingredient compose of METHYLENE BLUE and MALACHITE GREEN. So I just did partial water change and I'm wondering when will be the right time to put the medication? The botol states 1 drop per 4 liter of water.