Tomato oops

Ever heard the expression you can have to much of a good thing? Well, I over fertilized my little tomato plants and they are on their last leg :( I believe it was the coffee grounds.  My large plant loved the coffee ground and Epsom salt bath, but I think it was just to much for the little ones.  So I think when I propagate my adult again I won't fertilize until they are older. Well live and learn right? So moving on and trying something new.