Kelp is a sea plant that contains complexed minerals. Itís known to contain a lot of trace minerals that are quite hard to find anywhere else. One of the main purposes of the kelp in the BSM Drink it to not only provide those trace minerals but to do it in a complexed form. Now Coral Calcium is just calcium in an elemental form. Yes, it will contain other minerals and even some trace minerals but not as much as the kelp and not in the same form. Perhaps you were comparing the two because they both come from the sea?
Most of the time you will see people ask if they can use Coral Calcium as opposed to CH. I think that is why ML was confused and used those question marks. Personally if you want to use the C.C. go ahead just donít think of it as replacing the kelp and be mindful of the C.C. and the C.H. together as this is more calcium and would require more ACV or lemon to "interact" with it.