Quote Originally Posted by Rudeofus View Post
  • your Ferricyanide bleach seemed to have caused trouble, and the C41 process is not even rated for Ferricyanide bleach (but that's most likely not the cause of these spots). If you can, try to get Ammonium Ferric EDTA or even better, Ammonium Ferric PDTA to make a real C41 bleach.
An initial search at local suppliers only lists Ferric Ammonia Citrate, brown or green as available. Am I right to assume this is NOT the same as what you're suggesting above?