You can put citrus in just in moderation!
My worms love all sorts of citrus stuff. They really love grapefruite. I do make sure I add a little extra calcium when add the citrus stuff.
Everything should be put in, in moderation!
I once put to much tomato stuff in. We were processing tomato's to make tomato sause and I put a lot of seeds and more into the worm bin. I did add extra calcium but it was till to much tomato stuff. What a mess. So things should go in, in moderation!
Dairy products are not a good idea to add at all.
No poo from dogs, cats or humans.
No glass, metal, or plastic (unless it is corn based plastic that will break down in water).
Most say do not put meat or bones in either.