i havent sceen them shed ... the redness is the frog whole front part..if you see the pictures..his face is much shorter to the eyes then the other frog...its missing... i havent sceen n e puss..but it looks as if the face dispears more n more....since last night he has stood on that same ledge...still pale...the other frog seems to have no problems...eats...normal color ...swims...ect ect...