
Two Little Fishies PhosBan Reactor 150
BRS_TWO_LITTLE_FISHIES_FILTER_FL
This entry covers filter floss plus carbon/GFO media reactor gear, using the Two Little Fishies PhosBan Reactor 150 as the representative product for the carbon/GFO portion. The reactor uses an...
Or build it into a bundle — save up to 6% ↓What it is, and who it is for.

This entry covers filter floss plus carbon/GFO media reactor gear, using the Two Little Fishies PhosBan Reactor 150 as the representative product for the carbon/GFO portion. The reactor uses an upflow design that pushes water from the bottom up through a dispersion plate, forcing even flow through the media bed to prevent channeling and maximize contact with granular ferric oxide (GFO) or activated carbon. It services tanks up to about 150 gallons and is also paired with mechanical filter floss for particulate removal in reef and marine systems.
Build around the Two Little Fishies PhosBan Reactor 150.
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 filtration. Most buyers reading this page should buy the middle column.
Asked 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.

Two Little Fishies PhosBan Reactor 150
IceCap K1 Nano Media Reactor