- Joined
- Nov 7, 2012
- Messages
- 5,173
- Location (City and/or State)
- South of Southern California, but not Mexico
https://www.ncbi.nlm.nih.gov/pubmed/28112674
This thread describes what has become a bias for me regarding this item we all use.
https://www.tortoiseforum.org/threa...ng-cuttlebone-like-crazy.172042/#post-1694159
Oyster shell too, it is recent growing things in the heavily polluted Marine environment.
That's why I have turned to pure limestone as a source for calcium carbonate. It's something formed long before the advent of industrial chemicals and mass pollution. it's more pure.
GO
This thread describes what has become a bias for me regarding this item we all use.
https://www.tortoiseforum.org/threa...ng-cuttlebone-like-crazy.172042/#post-1694159
Oyster shell too, it is recent growing things in the heavily polluted Marine environment.
That's why I have turned to pure limestone as a source for calcium carbonate. It's something formed long before the advent of industrial chemicals and mass pollution. it's more pure.
GO