Thanks for the head up Tom. I've done this mix in the past with great results, but maybe you're right and it's just too hot. I've just never had this problem before. Maybe next time I'll put the amended mix in the bottom and just soil in the top part of the pot. I start my seeds in the expanded seed starters to try and let them get going before they hit the hot stuff.If you used espoma tomato tone, thars basically chicken manure and feather meal and its pretty hot when its decomposing. Not a terrible issue when top dressed. but mixed into the soil. it could cause problems with seedlings. then. If you happened upon a fresh batch of ffof thats also potentially hot (for seedlings) that could compound the issue...Looks like that may be the issue here.
gl