I always was disappointed with the loss of color when fixing Lumen prints. This time I used Chromoskadasic Stabilizer before fixing. It sure seems to fix the color. I'll be using this again.
It'd be interesting to see what a print looks like before fixing, after fixing and using the stabilizer and fixing. To keep color and to counter and bleaching I tone my prints.
Stabilizer certainly works - just posted a lumen print of rhododendron blossoms. I tried playing around with all the chromoskedasik stuff, but a 30 second dip in stabilizer and then fix and wash produces the best results. I made up the stabilizer myself: 100gm Am. Thiocyanate, 35gm S. Metabisulfite, 30ml 28% Acetic Acid, water to make 500ml; diluted it 1:4 for use.