When processing BW film in a small tank, how much chemical solution do you put into the tank? Do you fill it, or just enough to cover the film? This is probably a dumb question, but I haven't been able to find the answer anywhere, and it's been holding me back from trying to develop my film. I'm planning to develop one roll of 36exp Kodak 100TMax, using TMax developer, Kodak indicator stop, and Kodak rapid fixer. My tank holds two reels.