Well, I thought better about re-using my fixer, so I went out and got some more. Processed 5 rolls and I'm wondering if I was supposed to increase fix time because of the amount of film. That or temp wasn't high enough--hot water in darkroom is not working for some reason. Anyways, each roll has just a little whiteness to it. Now that it's been rinsed and Photo-floed, can I refix or am I SOL?