Hi guys, I need help as I have no progress treating ich. One of my king kong parrot fish and one blood parrot(small) fish got ich over 1 week ago. I went to LFS and bought fritz coppersafe medication and started treating the tank as per instructions. As my tank is 4ft x 1.5ft x 1.5ft(~65gallons), i put around 16teaspoon of medication as the instructions is to put 1teaspoon(5mL) for 4gallon. I removed all the plants and stones, carbon for the medication. I raised the water temperature slowly and for now, it is 30C(86F) already. After 3days of starting the treatment, I changed 50% water and dosed the replacement water again as I didn’t see any improvement on the ich. Today is the seventh day and the condition seems to be getting worse. There are 9 other parrot fishes in the same tank and they seems to be still in great condition without white spots. Please advise as it has been quite long since I started the treatment and there is no progress.In fact, the condition of the affected fishes has gotten worse over last few days. I can see more and more white spots by a few days on those two fishes. My fishes are also uncomfortable and sometimes rough as they seems not to like the water temperature. I have a bag of epsom salt. Should I add it or buy a new medication?