From the color stain you mentioned I would guess that you are using PMK pyro, I use Kodak's old SD-1 formula which gives a tan stain. You could just use straight sodium thiosulfate (hypo) which is what a lot of pyro users do so that the stain is not reduced or lost in the fixing. Now you know why pyro user's are so rednecked about it, there is no better developer for b/w film. Pat(posted 9145 days ago)