Bulk Reef Supply BRS Single Body GFO/Carbon Reactor fit check
Bulk Reef Supply BRS Single Body GFO/Carbon Reactor is a reactor from Bulk Reef Supply. Listed features: single chamber; 3 cups carbon (500 gal-rated) or 2 cups GFO (125 gal-rated); requires feed pump. Water and media purchases decide how many algae and parameter problems a new reef starts with, so match quantity to your real water volume.
Bulk Reef Supply BRS Single Body GFO/Carbon Reactor: fits roughly 5-150 gallon systems. Specs, compatibility math, sizing risks, and alternatives before you…

Who it is for
Good fit for
- ✓ 5-150 gallon systems, per the catalog fit range.
- ✓ Planned, measured use matched to the system's real water volume.
Not a fit for
- ✕ Systems over about 150 gallons without adding capacity elsewhere.
- ✕ Fixing an algae or nutrient problem without testing first.
Listed features
- single chamber
- 3 cups carbon (500 gal-rated) or 2 cups GFO (125 gal-rated)
- requires feed pump
Compatibility math
Build role
Example: Bulk Reef Supply BRS Single Body GFO/Carbon Reactor belongs in the plan only if it solves a real stability or maintenance job.
ReefCrafter keeps optional upgrades behind core stability requirements.
Risk notes
- Skipping RODI planning because tap water is cheaper often turns into a more expensive algae fight.
Professional fit context
- Check source water, RODI stage count, salt volume, test cadence, and media dosing caution.
- Bulk Reef Supply BRS Single Body GFO/Carbon Reactor fits roughly 5-150 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.
Alternatives to compare
- Seachem PhosGuard 1L
Catalog fit range 20-150 gallon systems (budget tier).
- Two Little Fishies PhosBan Reactor 150
Catalog fit range 20-150 gallon systems (balanced tier).
- Two Little Fishies PhosBan GFO Phosphate Adsorption Media (150g)
Catalog fit range 10-158 gallon systems (balanced tier).
Full spec snapshot
- Category
- Water / Media
- Build tier
- Budget
- Estimated price
- $69
- Tank fit range
- fits roughly 5-150 gallon systems
- Format
- Reactor
Related reading
Questions
What tank size is the Bulk Reef Supply BRS Single Body GFO/Carbon Reactor for?
ReefCrafter's catalog fit range for it is 5-150 gallon systems. Confirm that against your final display volume, sump volume, and livestock plan rather than the box label alone.
What should I compare the Bulk Reef Supply BRS Single Body GFO/Carbon Reactor against?
Seachem PhosGuard 1L (Catalog fit range 20-150 gallon systems (budget tier)); Two Little Fishies PhosBan Reactor 150 (Catalog fit range 20-150 gallon systems (balanced tier)); Two Little Fishies PhosBan GFO Phosphate Adsorption Media (150g) (Catalog fit range 10-158 gallon systems (balanced tier)).
Similar fit checks




Two Little Fishies PhosBan GFO Phosphate Adsorption Media (150g)
Two Little Fishies · $27