Rnady's formula using Seachem

[bob_8228]

hi fellas (& randy),
how do i make adjustments for randy's formula for the 2-part balanced additives if i were to use seachem's reef advantage calcium? the product is listed to contain 34.7% calcium.

i want to make it balanced with the part-2 & 3 in terms of dosage and we don't have dowflake down here.

thanks & happy days