Okay, I'm taking black and white photography at my school. I've devloped a lot of crappy Arista EDU 400 film and had th esame problem I'm about to describe, but it didn't show up on the enlarger, so it never bothered me. Now, I have just developed a roll of Kodak T-Max 400 professional film for personal use and my teacher said the last step is to swirl it in a tub of photo flow for 1 minute, and hang it to dry. Now, here comes the question. I let it dry for about 30 mins and I took it home with me, I noticed the photo flow residue is on the film, as well as a few finger prints. Now, I just developed it a few hours ago, but I want to know if it is safe to wash under water with a microfiber cloth or if I have to let it "cure" or something for x ammount of day. Or will that take off the layer of photo flow altogether no matter when I wash it (what does the flow even do? the film is already developed after the fix an dI know the hypo kind of "seals" it but what about the flow? Thanks in advance.