I have just bought a second hand tank (36"x15"x15") that I want to set up on the weekend - Is it a good idea to use some water from my other tank (AR980) to help establish it? I will be using new substrate which I will have to rinse. My first tank has been set up for 6 months and has Tiger,Odessa, Rosy Barbs and a Flying Fox. In my new tank I intend to have a pair of Kribenses.