REACTORS (128)
Best selling Best selling
  • IceCap CO2 Media 1KG
    $11.43 $14.29
    No reviews

    IceCap Color Changing CO2 Absorbent Media is the perfect solution if your aquarium struggles with low pH. Media turns from...

  • Eshopps Bio Cup R
    $27.98 $34.98

    OUT OF STOCK

    No reviews

    The next best thing to Filter Socks, the Bio Cup R supplements your traditional Filter Sock making reefing stress free....

  • 7.5 lbs Bulk Color Changing CO2 Absorbent Media
    $27.74 $36.99
    No reviews

    Raise your Reef Tank's pH by controlling Carbon Dioxide!   Bulk Reef Supply Color Changing CO2 Absorbent Media (Soda Lime)...

  • CarbonDoser CO2 Electronic Regulator
    $382.49 $449.99
    No reviews

    CarbonDoser Electronic CO2 Regulator V2.0 (complete system: with remote box option)   Now sold with the TUNZE (German Built) Regulator...

  • 1.2 lbs (Single Cartridge Refill) Color Changing CO2 Absorbent Media
    $5.24 $6.99
    No reviews

    Raise your Reef Tank's pH by controlling Carbon Dioxide!   Bulk Reef Supply Color Changing CO2 Absorbent Media (Soda Lime)...

  • Lifegard Aquatics Turbo Reactors Large Side Flow
    $163.29 $204.11
    No reviews

    LIFEGARD Turbo Reactors All Lifegard Turbo Reactors are engineered to the highest quality and efficiency to promote the growth of...

  • IceCap GFO 100INT Media Reactor
    $105.59 $131.99
    No reviews

    Canister Media Reactor for In-Sump Aquarium Applications The IceCap INT Media Reactors are designed for in-sump applications and are plug-and-play...

  • Universal CO2 Scrubber
    $28.49 $37.99
    No reviews

    Carbon Dioxide (CO2) can directly affect the pH of your aquarium, and with a low pH, corals may not grow...

  • Two Little Fishes Little Reactor
    $49.27 $61.59
    No reviews

    Two Little Fishies Little Reactor is the latest and smallest Two Little Fishies reactor. This 7" tall reactor is designed...

  • Two Little Fishies Phosban Reactor 150
    $49.99 $71.35
    No reviews

    Introducing the TLF PhosBan Reactor. Uses a fluidized method to take full advantage of using Phosban media, or RowaPhos media...

  • Two Little Fishies PhosBan Reactor 150 Replacement O-ring (1
    $1.56 $1.95
    No reviews

    Reactor 150 O-Ring - One O-Ring for PBR150 (1 per pack)

  • Tunze CO2 Regulator
    $119.99 $149.99
    No reviews

    Precision device with fine adjustment for standard CO2 cylinders, thread in keeping with German standard DIN 477 (US version with...

  • Adaptive Reef Large Algae Reactor 16 Bundle
    $524.99 $699.99

    OUT OF STOCK

    No reviews

    Adaptive Reef Powered by AquaIllumination Blade Clean, Controlled, and Natural Algae Filtration Supports Turf Algae or Macroalgae Use Compact Form...

  • Adaptive Reef Small Algae Reactor 10 Bundle
    $449.99 $599.99
    No reviews

    Adaptive Reef Powered by AquaIllumination Blade Clean, Controlled, and Natural Algae Filtration Supports Turf Algae or Macroalgae Use Compact Form...

  • Reef Octopus CO2 Top Cover for Elite 220 S, Elite 220 INT
    $38.71 $48.39

    OUT OF STOCK

    No reviews

    A Perfect Lid for a Perfect Fit This special lid is designed to precisely fit a range of Reef Octopus...

  • IceCap GFO 120INT Media Reactor
    $153.99 $192.49
    No reviews

    Canister Media Reactor for In-Sump Aquarium Applications The IceCap INT Media Reactors are designed for in-sump applications and are plug-and-play...

  • Reef Octopus Universal CO2 Scrubber
    $158.39 $197.99
    No reviews

    The Reef Octopus CO2 Scrubber is a universal reactor that will help stabilize pH levels by lowering the concentration of...

  • BashSea 4x12 Media Reactor
    $84.15 $99.00

    OUT OF STOCK

    No reviews

    The Bashsea Media Chamber provides the largest media capacity in the industry. Extra large design allows for high media volumes,...

  • IceCap 60P Medium Controllable DC Media Reactor
    $95.04 $118.80
    No reviews

    IceCap User-Friendly DC Media Reactor  The IceCap Controllable 12v DC Media Reactor is the ideal device for utilizing your favorite...

  • Innovative Marine MiniMax Pro AIO Media Reactor [Desktop]
    $64.00 $80.00

    OUT OF STOCK

    No reviews

    MiniMax Pro Series - All-In-One Media Reactor - Desktop   If you desire the highest water quality but are frustrated...

  • IceCap Small External Pro Algae Scrubber
    $237.59 $296.99

    OUT OF STOCK

    No reviews

    Fight Algae with Algae... Naturally IceCap PRO External Turf Scrubbers use algae as a natural water filter to remove nitrate,...

  • Reef Octopus CO2 Top Cover 6"
    $31.67 $39.59
    No reviews

    A Perfect Lid for a Perfect Fit This special lid is designed to precisely fit a range of Reef Octopus...

  • IceCap Turf Scrubber Pro Small
    $237.59 $296.99
    No reviews

    Fight Algae with Algae... Naturally IceCap PRO Internal Turf Scrubbers use algae as a natural water filter to remove nitrate,...

  • Lifegard Aquatics Turbo Reactors Medium Side Flow
    $108.86 $136.07

    OUT OF STOCK

    No reviews

    LIFEGARD Turbo Reactors All Lifegard Turbo Reactors are engineered to the highest quality and efficiency to promote the growth of...

  • Reef Octopus 3.5" MF1000 Advanced Media Reactor
    $175.99 $219.99

    OUT OF STOCK

    No reviews

    MF 1000 Advanced Media Reactor Dim: 4.7″ x 4.7″ | Body Diameter: 3.5"″ | Height: 21″ Great for activated carbon,...

  • Reef Octopus 10" KS250 Nilson Kalk Reactor
    $598.39 $747.99
    No reviews

    Reef Octopus KS250 Nilson Kalk Reactor Footprint: 12.6″ x 12.6″ | Body Diameter: 10″ | Height: 26″ Requires control timer...

  • 3/16" x 5/16" Ozone Safe Tubing - per foot
    $1.99 $2.49
    No reviews

    3/16" x 5/16" Ozone Safe Tubing - per foot

  • Floating Surface Ribbon Scrubber with Green Grabber Surfaces
    $284.99

    OUT OF STOCK

    No reviews

    SURF2® Surf Scrubber(TM) Floating Surface Upflow Algae Scrubber® with Green Grabber(TM) surfaces "It Floats Like A Boat!" (TM) Eliminate water...

  • Octopus Bio Churn 120R Recirculating Reactor
    $378.39 $472.99
    No reviews

            └90 Int       Reef Octopus NEW Biopellet reactor series takes a innovative approach of...

  • TLF NPX Screens for Phosban Reactor 150
    $1.99 $2.49
    No reviews

    TLF NPX Screens for Phosban Reactor 150

  • Two Little Fishies Reactor 550 Foam Disks 2 pk
    $4.02 $5.02
    No reviews

    TLF Reactor 550 Foam Disks 2 pk

  • Two Little Fishies PhosBan Reactor 550
    $94.93 $118.66
    No reviews

      The PhosBan Reactor 550 is designed with the upflow principle to achieve the most efficient use of PhosBan or...

  • Milwaukee MA957 CO2 Regulator, Solenoid, Bubble Counter
    $109.04 $136.30
    No reviews

    MA957 CO2 Solenoid Diaphragm Valve Includes flow regulator, needle valve, electronic solenoid & bubble counter. Unit comes with dual gauges...

  • IceCap 80P Large Controllable DC Media Reactor
    $118.08 $147.60
    No reviews

    IceCap User-Friendly DC Media Reactor  The IceCap Controllable 12v DC Media Reactor is the ideal device for utilizing your favorite...

  • IceCap 50P Small Controllable DC Media Reactor
    $72.00 $90.00
    No reviews

    IceCap User-Friendly DC Media Reactor  The IceCap Controllable 12v DC Media Reactor is the ideal device for utilizing your favorite...

  • IceCap GFO 120EXT Media Reactor
    $153.99 $192.49
    No reviews

    Canister Media Reactor for Universal Aquarium Applications The IceCap EXT Media Reactors are plug-and-play reactors with a removable canister for...

  • IceCap Medium External Pro Algae Scrubber
    $321.19 $401.49
    No reviews

    Fight Algae with Algae... Naturally IceCap PRO External Turf Scrubbers use algae as a natural water filter to remove nitrate,...

  • Reef Octopus CO2 Top Cover 10" for Regal 250int,sss,ext. SRO5000int,sss,ext
    $40.47 $50.59
    No reviews

    A Perfect Lid for a Perfect Fit This special lid is designed to precisely fit a range of Reef Octopus...

  • Pax Bellum C36 diffuser disc 3pk
    $59.99 $80.00
    No reviews

    Pax Bellum The c36 diffuser disc 3pk is a replacement component for the c36 ARID reactor consisting of 3 diffuser...

  • Red Sea Filter Media Cup
    $15.80 $17.95
    No reviews

    FILTER MEDIA CUP An easy-clean alternative to the 4”/10cm micron filter bag.   Red Sea filter media cup with free...

  • IceCap CO2 Scrubber Large
    $140.79 $175.99
    No reviews

    The IceCap CO2 Scrubber can be installed on just about any aquarium with a protein skimmer. Just connect the tubing...

  • IceCap CO2 Scrubber Medium
    $96.79 $120.99
    No reviews

    The IceCap CO2 Scrubber can be installed on just about any aquarium with a protein skimmer. Just connect the tubing...

  • IceCap CO2 Scrubber Small
    $79.19 $98.99
    No reviews

    The IceCap CO2 Scrubber can be installed on just about any aquarium with a protein skimmer. Just connect the tubing...

  • ME Coral Media Reactor 4x18
    $103.19 $128.99
    No reviews

    The MEdia Reactor has been designed to be an advanced media reactor for ME GFO (Granular Ferric Oxide) and GAC...

  • Tunze Macro Algae Reactor 3181
    $459.99 $574.99
    No reviews

    For aquariums from 100 to 600 liters (25 - 160 USgal.). Flow rate: 500 - 1,200 l/h (132 - 318...

  • Octopus Light Reactor 8" - LR200
    $538.68 $673.35
    No reviews

    Reef Octopus Light Reactor   The Reef Octopus Light Reactor allows you to grow algae within a contained system while...

  • IceCap Kalk Mixer 8"
    $360.79 $450.99
    No reviews

    IceCap Kalk Mixing Reactor Available in 3 Sizes: Small - Ideal for Aquariums up to 100gal Footprint: 5.7" x 5.7"...

  • IceCap Kalk Mixer 6"
    $325.59 $406.99
    No reviews

    IceCap Kalk Mixing Reactor Available in 3 Sizes: Small - Ideal for Aquariums up to 100gal Footprint: 5.7" x 5.7"...

  • IceCap Kalk Mixer 5"
    $263.99 $329.99
    No reviews

    IceCap Kalk Mixing Reactor Available in 3 Sizes: Small - Ideal for Aquariums up to 100gal Footprint: 5.7" x 5.7"...

  • Lifegard Aquatics Turbo Reactors X-Large Side Flow
    $271.24 $339.05
    No reviews

    LIFEGARD Turbo Reactors All Lifegard Turbo Reactors are engineered to the highest quality and efficiency to promote the growth of...

  • Lifegard Aquatics Turbo Reactors Medium Top Flow
    $97.92 $122.40

    OUT OF STOCK

    No reviews

    LIFEGARD Turbo Reactors All Lifegard Turbo Reactors are engineered to the highest quality and efficiency to promote the growth of...

  • DROP1.2 drop-in upflow algae scrubber with Green Grabber surfaces - 1.2 cubes feeding per day
    $170.99

    OUT OF STOCK

    No reviews

    This is a great new item that compliments Real Reef and the Coral Fragging revolution.DROP1.2x dimensions: 3.25" wide x 6"...