Thanks wooden ill do some good research, limited for time if things get worse can understand why people fail when they are under pressure to buy and set everything up quickly for QT and just for fish tradewinds I'll get a separate qt for corals etc, also just thinking so once the quarantine tank is set up after quarantine is done if successful should the quarantine tank have a full water Change, and also can you just leave the salt water cold and heat it up if you run into problems a few hours before hand does heat play apart of massive part of water stability thanks