Agfachrome fungus

[Olympusman]

Lately I have been digitizing film on my copy stand and have gotten fairly good restoring lost color. Kodachrome, as we all know, is pretty stable. My slides from the 70s and 80s from Ektachrome are losing what warmth they had originally. I usually used a warming filter with Ektachrome. Fujichrome is holding up pretty well. Agfachrome from the 70s is becoming magenta with blue blacks. You could only buy Agfachrome with a prepaid processing mailer, so it all went through their lab in New Jersey. I loved it because a color quality like Metrocolor (as in Doctor Zhivago). At that time, many photo companies were experimenting with alternatives to formaldehyde as a hardener/stabilizer in photoprocessing with disappointing results.
When going through my slide archives, I only found fungus on Agfachrome slides. These samples are from a slide from 1974.

[Olympusman]