I have this EE hen that has only a few times laid an egg with a decent shell on it. I've tried supplementing the feed with oyster shell and with crushed egg shells and it doesn't seem to help her much. Most of the time the shells break in the nest. She once laid and egg with almost no shell. Just an light dusting of shell on a membrane. It was like picking up jello. Now, we're pretty sure which chicken is the problem one. She's a bit smaller than the rest and I have to clip her toenails regularly or they grow weird and she can't walk well. Lately her eggs have been tasting like fish. They're horrible. We don't feed her anything different than we feed the others and their eggs are fine. She's not the dominant hen so she's not eating more of one thing than the others. She's been laying regularly (which is new for her) the past month or so, so I don't think there's anything stuck up in her. I could use any ideas.