Quote Originally Posted by gareth harper
Hey I want to keep things simple so I'm not interested in two fix baths.
Two sodium thiosulfate based fixing baths may be a little more complicated than one bath, but the entire fix/tone/wash cycle is vastly more short, simple and effective when done this way as opposed to using ammonium thiosulfate based (i.e. acidic) fixers. I'm not sure you can really get archival permanence at all with acid fixers no matter how long you wash the prints.

Good explanation of the differences:

http://www.fineartphotosupply.com/Alk%20Fixers.htm