I tried taking some of the fish and putting them into my large tanks upstairs that are good water and the fish drop dead anyway. Whatever was in the water has done damage beyond repair. I brought 55 fish up to my 70 gallon tank and all it did was contaminate that tank and start killing those fish too. Clean water won't do anything but make more dirty water for me to flush out. I mean your talking 2100 gallons. I would have to bring in a tanker of water and then heat it somehow before pumping it into the system.