Hello everyone. New guy here to the forum and also to developing my own black and white film. I've only developed two rolls so far and they turned out pretty decent for my first go. The two rolls were developed together in my arista tank. I would now like to develop just one roll in the same two roll tank but was wondering, will the extra space in the tank during inversions induce air bubbles or anything into my chemicals due to all the sloshing around of the extra air with my chems? I'd hate to ruin a roll of film by making a mistake. Any while I'm here, may you tell me about how you go about rinsing your film once developed? On my first two rolls after my stop bath, I used a tank of properly diluted photo flo, at lease I think it was properly dilluted. It was awful sudsy. I drained the tank of the photo flo solution and then rinsed the reels off with some distilled water. Is there a better way to rinse my film than the process I used? I thank everyone for your time. Here's a pic from my first attempt at developing myself. Tri X in D-76.