RODI, Salt, and Filtration Media checked by reef math.
Water quality gear is not glamorous, but it decides how many algae and parameter problems you buy on day one.

Water / Media
BRS 4 Stage Value 75 GPD RO/DI System
Bulk Reef Supply · $180

Water / Media
BRS 4 Stage Value Plus 75 GPD RO/DI System
Bulk Reef Supply · $225

Water / Media
BRS 5 Stage 75 GPD RO/DI System
Bulk Reef Supply · $279

Water / Media
BRS GFO Carbon Reactor Dual
Bulk Reef Supply · $129

Water / Media
BRS Premium ROX 0.8 Aquarium Carbon 1 lb
Bulk Reef Supply · $25

Water / Media
BRS Single Body GFO/Carbon Reactor
Bulk Reef Supply · $69

Water / Media
Instant Ocean Reef Crystals 200 Gallon Mix
Instant Ocean · $179

Water / Media
Instant Ocean Reef Crystals 50 Gallon Mix
Instant Ocean · $77

Water / Media
Instant Ocean Sea Salt 50 Gallon Mix
Instant Ocean · $40

Water / Media
Red Sea Blue Bucket Coral Pro Salt 55 Gallon Mix
Red Sea · $80

Water / Media
Red Sea Coral Pro Salt 175 Gallon Bucket
Red Sea · $199

Water / Media
Tropic Marin Pro Reef Salt 55 Gallon Mix
Tropic Marin · $65

Water / Media
AquaMaxx BioMaxx BioPellet Reactor Standard
AquaMaxx · $189

Water / Media
AquaMaxx BioMaxx XL BioPellet Reactor
AquaMaxx · $239

Water / Media
AquaMaxx Omega-1 Biopellet Reactor
AquaMaxx · $179

Water / Media
Brightwell Aquatics Xport BIO Reef Cubes 1 Gallon
Brightwell Aquatics · $49

Water / Media
BRS GFO Carbon Reactor Deluxe
Bulk Reef Supply · $159

Water / Media
SpectraPure MaxCap 5 Stage 2:1 Manual Flush 90-GPD RO/DI System
SpectraPure · $399

Water / Media
Tropic Marin Pro Reef Salt 200 Gallon Mix
Tropic Marin · $179