For nearly 2 years I've been using Seachem - both Reef Builder and Advantage Calcium, and have been using Brightwell's Magnesion-P for a few months
These are great for small or low-demand tanks, but ...
My tank is demanding more, so I'm currently switching over to Randy's 2-part. I'm calculating a potential savings of $100/yr
I bought;
Epsom Salts and Baking Soda @ Walmart
Magnesium Chloride Hexahydrate from Big Al's Online
Calcium Chloride @ Home Hardware
I'd run a Calcium Reactor, but for now it's not in the budget
Maybe next year
