Hallo band, I am just busy finishing off some prints for someone. After wiping off the prints I have some reddish scum on my sponge. What is this? I used Selenium toner with these prints. Is it Selenium? The funny thing is there are about 10-12 prints and it is only showing up now with the last few prints. I have had this years ago where there was a lot of reddish scum on prints. Since then I have never had this again till now. This is making me a bit nervous because I have to handover the prints tomorrow and I am worried that I have possibly not washed the prints properly. Any ideas?