These reactors are suitable for fluidizing Rowaphos, reactive carbon or sand for biological filtration.

The FR 509 is suitable for freshwater or marine systems up to 200 UK gallons, (900 litres)

If used as a fluidized reactor it will fluidise up to 1 lt of Rowaphos.
(For tanks of less than 50 gallons, (225 litres) we would recommend that you half fill the reactor with 500 ml of Rowaphos.)

Dimensions : Footprint (approx) 180 x 140 mm. Height : 500mm. Column Diameter : 100mm
Inlet : will take 12mm hose : with flow control valve
Outlet : will take 16mm hose

Pump flow rate should be up to 500 l.p.h.

RAINBOW LIFEGARD FLUIDIZED BED BIOLOGICAL FILTERS

FB600 & FB900 not currently available


Requires pump or powerhead to operate filter


One of the easiest to use and most popular fluidized filter beds available. Much more efficient than the traditional under-gravel filter system.

Hangs on the side or back of the aquarium. Recommended pump to run this model is the Hagen Aqua Clear 301 Power Head

A check valve for the FB300/FB600/FB900.

Replacement media for the Rainbow LifeGard series of fluid bed filters

One bottle is sufficient for the FB300 but bigger models will require more than 1 bottle