Two Little Fishies Reactor

Two Little Fishies Reactors – Little Reactor, PhosBan 150, PhosBan 550 & KW Reactor

Two Little Fishies reactors use an efficient upflow design that pushes water upward through the reactor media for even distribution and improved contact. The lineup includes compact media reactors for phosphate control and activated carbon, larger reactors for high-volume systems, and a dedicated Kalkwasser reactor for automated calcium hydroxide mixing.

Little Reactor

The Little Reactor is a compact upflow media reactor designed for Nano and Pico aquariums. Its small footprint also makes it ideal for frag tanks and portable frag-swap systems.

Water enters from the bottom and passes upward through a dispersion plate, allowing even flow through PhosBan, GFO, activated carbon and other chemical filtration media.

Specifications

• Aquarium Size: Up to 50 gal / 190 L

• Max PhosBan/GFO: 75 g / 145 ml

• Max GFO Height: 1.5" / 3.8 cm

• Activated Carbon Capacity: Up to 150 ml

• Recommended Flow: 20 GPH / 75 LPH

• Hose Connections: 1/2" / 12.7 mm ID

• Rotating 90° inlet & outlet fittings

• Multiple reactors can be used in parallel

When using activated carbon alone, the reactor can be filled completely and operated at higher flow. PhosBan can also be mixed 50/50 with phosphate-free activated carbon.

PhosBan Reactor 150

The PhosBan Reactor 150 provides efficient upflow filtration for PhosBan, GFO, activated carbon and other chemical media. The dispersion plate distributes water evenly through the media to reduce channeling.

It can be mounted on the back of the aquarium or installed below the tank and includes a ball valve for precise flow adjustment.

Specifications

• Aquarium Size: Up to 150 gal / 568 L

• Max PhosBan/GFO: 200 g / 385 ml

• GFO Media Height: 2–5" / 5–13 cm

• Recommended Flow: 20–30 GPH / 75–115 LPH

• Recommended Pump Capacity: 100–250 GPH

• Hose Connections: 1/2" / 12.7 mm ID

• Rotating 90° inlet & outlet fittings

• Includes flow-control ball valve & hose clamps

• Multiple reactors can be used for larger systems

When using activated carbon alone, the entire media column can be filled. PhosBan can also be mixed with phosphate-free activated carbon when a greater media volume is required.

PhosBan Reactor 550

The PhosBan Reactor 550 is a larger-capacity upflow media reactor designed for large aquarium systems. Water is pushed upward through a dispersion plate for even media contact and reduced channeling.

It can be mounted behind or below the aquarium and features a threaded lid for quick servicing.

Specifications

• Aquarium Size: Up to 600 gal

• Upflow media design

• Includes flow-control ball valve

• Flexible fittings rotate up to 180°

• Threaded lid for easy media changes and maintenance

• Suitable for PhosBan, GFO and other chemical filtration media

Additional capacity, flow and dimensional specifications were not provided in the supplied PhosBan 550 information.

KW Reactor 300

The KW Reactor is designed specifically for automated Kalkwasser supplementation. Top-off water enters from below and flows upward through calcium hydroxide, automatically mixing it into a supersaturated Kalkwasser solution.

The reactor can be mounted behind or below the aquarium and features a threaded lid for easy refilling and maintenance.

Specifications

• Model: KW Reactor 300

• Aquarium Size: Up to 300 gal

• Upflow Kalkwasser mixing design

• Flexible fittings rotate up to 180°

• Includes check valve

• Threaded lid for easy servicing and calcium hydroxide refilling

• Designed by Julian Sprung

Additional dimensions, capacity and flow specifications were not included in the supplied KW Reactor information.

Important Reactor Use Notes

For the Little Reactor and PhosBan Reactor 150, excessive flow can grind GFO media. Flow should be regulated on the inlet side, not the outlet, as restricting the outlet can pressurize the reactor and cause leaks.