I have a 10 gallon tank, UTH, hot side is 92 degrees, 'cold' is 80-84. Hides on both sides. Humidity ranges from 55% up to 70%. I put the mouse in a ziplock bag, and submerged him for 15-20 minutes (I had read that on numerous boards). I am more than willing to do longer. I also usually blow dry the thing once out of the bag to make sure he is not damp.

And I had read about braining/scenting as well, so thought I would ask on here before going forward with it.