Like many families, we eat eggs and this produces egg shells. While I am aware that composting is a possibility I am wondering if there are other things we can do with them. We are not raising chickens of our own yet so feeding them back to chickens is not a possibility. We do however have turtles and carp (both ornamental and edible).
1) Can egg shells be fed to turtles and other animals as a calcium supplement (in lieu of cuttlebone)? If so, any advice on how to do this?
2) Is there any reasonable way to incorporate eggshells into cooking to produce extra calcium for human consumption?
3) are there other household uses for eggshells?