BRS 2-Part Calcium & Alkalinity Supplement
BRS-2PART
The BRS 2-Part Pharma Calcium & Alkalinity Starter Package supplies pharmaceutical-grade calcium and alkalinity additives to replenish the elements stony corals consume as they grow. It is formulated for a...
Or build it into a bundle — save up to 6% ↓What it is, and who it is for.
The BRS 2-Part Pharma Calcium & Alkalinity Starter Package supplies pharmaceutical-grade calcium and alkalinity additives to replenish the elements stony corals consume as they grow. It is formulated for a simple 1:1 calcium-to-alkalinity dosing ratio and includes the mixing jugs, dosing pumps and measuring tools needed to get started. Solutions are mixed with RO/DI water and dosed daily, manually or via a controller.
Build around the BRS 2-Part Calcium & Alkalinity Supplement.
It's already in your system below. Add the flow, filtration and dosing around it and the discount starts working — tiers climb as the build grows, and the reef meter fills with it.
Pick the right one, not the biggest one
The honest line-up from supplements. Most buyers reading this page should buy the middle column.
Brightwell Reef Code A & B 2-Part Supplement
BRS 2-Part Calcium & Alkalinity Supplement
Tropic Marin All-For-Reef SupplementAsked before checkout
The questions our support inbox actually gets.
Does it ship quickly?+
Orders placed before 2 PM ET on a business day leave the same day. Tracking is emailed the moment the label prints.
What if it's the wrong fit for my tank?+
Return it. 30 days, no restocking fee, refund to the original payment method. Better: tell us your tank first and we'll spec the system for free — half of all returns are sizing problems.
Who handles the warranty?+
We do. Everything carries the manufacturer's warranty and we run the claim for you — one email to us instead of a ticket queue.
How does the bundle discount work?+
Add items in the bundle builder: 2+ items saves 5%, 3+ saves 8%, 4+ saves 12%, and 5+ saves 15% off the whole system, applied at checkout.