sodium carbonate

Hey, I've noticed that common alkalinity maintaining products use either only sodium bicarb or a mix of the two. Why Sodium Carbonate is used so rear and why never alone?

I'm trying to decide which 2 (or 3, or 4) part system I want to use with my reef, and am currently comparing Tropic Marin (TM) vs Bulk Reef Supply (BRS) Pharma parts A & B. Here are some observations and related questions. Tropic Marin Part A uses Calcium Chloride Dihydrate, while BRS is just...

Hi folks, I am looking to implement 2-part/balling method using sodium carbonate, however most products I see being sold here in the UK use sodium bicarbonate. I would like to run my pH a little higher, hence my interest in using soda ash. BRS soda ash is not available here, and although I am...