I used to use a daylight tank, but I constantly scratched the film doing so. I discovered that I was putting the film in with the emulsion side scraping the edges of the slot, and that was the problem. However, I decided to just use trays for developing, and use the tank (with the cover off) to wash the film with the lights on. Still, it was very fiddly and there wasn't (in my opinion) enough space between the sheets when I put them in adjacent slots. So...I ended up buying 10 SS hangers, and a plexi wash tank that they hang from the top of. It's the best solution thus far. Be sure you slide the wet film into the hanger with the emulsion side "up", and there shouldn't be a problem.