Wow! I would never advise to have one roll in a 2 roll tank with only enough developer to cover the bottom reel but I think that's what I'm hearing. I used to see this a lot as a lab tech at a local JC and there were problems EVERY time. If you have 1 roll of film and always use a 2 roll or larger tanks, fill with empty reels so you are not sloshing all over and fill that sucker up as if you are developing a full tank. Develope at your normal time and temp. Other methods may work this one Will work. HTH W(posted 8215 days ago)