Water / Media · Two Little Fishies

Two Little Fishies PhosBan Reactor 150 fit check

Quick answer

Two Little Fishies PhosBan Reactor 150 is a media reactor from Two Little Fishies. Listed features: Upflow design ensures even media distribution and prevents channeling; Recommended flow rate 20-30 GPH (pump capacity 100-250 GPH); Accepts 1/2 inch i.d. tubing via hose-barb connections.

Two Little Fishies PhosBan Reactor 150: fits roughly 20-150 gallon systems. Specs, compatibility math, sizing risks, and alternatives before you buy.

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Who it is for

Good fit for

✓ 20-150 gallon systems, per the catalog fit range.
✓ Planned, measured use matched to the system's real water volume.

Not a fit for

✕ Tanks under about 20 gallons; it is sized above them.
✕ Systems over about 150 gallons without adding capacity elsewhere.
✕ Fixing an algae or nutrient problem without testing first.

Listed features

Upflow design ensures even media distribution and prevents channeling
Recommended flow rate 20-30 GPH (pump capacity 100-250 GPH)
Accepts 1/2 inch i.d. tubing via hose-barb connections
Includes 1/2 inch barbed ball valve and hose clamps
Hang-on-back or below-tank mounting

Specs checked against saltwateraquarium.com.

Compatibility math

Build role

gear value = risk reduced + maintenance made easier + build fit

Example: Two Little Fishies PhosBan Reactor 150 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.
Two Little Fishies PhosBan Reactor 150 fits roughly 20-150 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.

Alternatives to compare

Bulk Reef Supply BRS Single Body GFO/Carbon Reactor
Catalog fit range 5-150 gallon systems (budget tier).
Seachem PhosGuard 1L
Catalog fit range 20-150 gallon systems (budget 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: Balanced
Estimated price: $77
Tank fit range: fits roughly 20-150 gallon systems
Format: Media Reactor

Questions

What tank size is the Two Little Fishies PhosBan Reactor 150 for?

ReefCrafter's catalog fit range for it is 20-150 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 Two Little Fishies PhosBan Reactor 150 against?

Bulk Reef Supply BRS Single Body GFO/Carbon Reactor (Catalog fit range 5-150 gallon systems (budget tier)); Seachem PhosGuard 1L (Catalog fit range 20-150 gallon systems (budget tier)); Two Little Fishies PhosBan GFO Phosphate Adsorption Media (150g) (Catalog fit range 10-158 gallon systems (balanced tier)).