(there was a url link here which no longer exists) - Ansco Fixing Baths
Here are some Ansco Fixing Bath recipes for your consideration. Remember to add ingredients in the order given and to exercise extreme caution with these recipes.
ANSCO FIXING BATH 201
A standard acid hardening and fixing bath for films and papers. It has excellent shelf and pot life and can be used extensively before discarding is required. When it reaches that point it will become cloudy. Discard at this point.