Quote Originally Posted by Selkielass View Post
Earthworms aren't bad on calcium if they are raised in calcium rich soil and eat nutritionally rich foods. If you buy bait store worms they will be pretty empty unless you feed them up yourself. (Especially inwinter.)
Yeah, I was going to say, bones aren't the only source of calcium. Snakes really don't need tons of calcium anyway. I've raised northwesterns on worms and slugs alone and they didn't have a calcium deficiency. They only need a supplement if their diet is all but completely lacking it. Worm castings alone are rich in calcium even when the surrounding soil isn't. Slugs are often gut loaded with calcium rich plant matter.