What I was asking is the effects of adding acid to an alkaline fixer. I have not found anything specific to 'this' questions. The myths about stopbaths are numerous and popularly persistent to discuss again here. That being not my intent, I will move on to more searching on my own. Your sorry for the inconvenience, Garry ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.