I ordered some fish online for the first time and up to this point I haven't done any qt. I know the equipment i need but am just looking for a little clarification. I plan on observation for a couple weeks then doing TTM as a precaution. I have 2 10 gallon tanks i will be using for TTM and am planning on doing to every other day for 14 days. Can i use water from my DT for my qt water or does it need to be new salt water?