Bulk Reef Supply (BRS): Retailer + RO/DI + Test Kits

Bulk Reef Supply started as a reef retailer and grew into a major brand with private-label RO/DI systems, 2-part additives, salt mix (BRS Reef Salt), test kits, and probably the most influential reef-hobby YouTube channel (BRStv). The 5/6-stage RO/DI systems are the reef hobby standard.

Known for

5/6/7-stage RO/DI systems

$150-350 RO/DI systems with industry-leading parts availability. The 6-stage Plus is the most-recommended unit on the reef hobby.

2-part dosing system

BRS Pharmaceutical-grade calcium chloride + sodium bicarbonate + magnesium 2-part. The least-expensive way to dose alk/cal/mg accurately.

BRStv YouTube education

Daily reef-hobby video content. Reef Tank 52, Investigates, How-To series. The default education resource for new reefers.

Pros and cons

Pros

Industry-leading parts availability and customer service
BRStv education content is genuinely useful
Pharma-grade dosing chemicals at low prices

Cons

Private-label salt mix and skimmers are mid-tier vs specialist brands
Aggressive marketing - filter the BRStv recommendations through hobby forums

Common competitors

Marine Depot (now closed) · Saltwater Aquarium · AquaCave