I'm using PMK pyro and to minimize stain loss during processing I'm using plain water stop and a non-hardening fixer (Kodak F-24 formula). Is there a formula available for mixing a fixer which is less acidic or even alkaline? I assume that this would maximize stain. (I'm in Australia and would prefer to mix myself rather than import small quantities of pre-mixed fixer from the USA)(posted 8525 days ago)