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- #11
Sorry for the late reply. Thank you for the help! I will be getting them some soonOyster shell is easiest got online.
I don't have a type recommendation 'cos I'm on a different continent!
You can get it mixed with grit but it sounds like just pure oyster shell is what you want.
Just look into it, it's not hard to find or expensive and you can usually get as much as you possibly want!