Difference between Brightwell's Code A & B

[Picassoclown]

Hello. I need to add calcium and alk to my tank....but they both do the same thing. What's the difference between them? Thank you in advance for the feedback.

 

[KStatefan]

One is the calcium part and one is the alk part.

Brightwell Aquatics - Reef Code A

Brightwell Aquatics - Reef Code B

 

[Kellie in CA]

A is calcium, B is Alk

 

[Picassoclown]

Thanks for the feedback!