I'm currently setting up my quarantine tanks for what I maybe purchasing at a reptile show on the 21st. They are two 20 gallon longs, that have been sitting in my basement for a few years, they aren't too bad just dusty. My question is, what should I clean them with? I've been using dawn dish soap and warm water. I also have chlorhex that I can use. Any tips or recommendations on what you guys would use? Thanks in advance guys.