FILTRATION (884)
Best selling Best selling
  • Bashsea 30x10x14" Bio-Fuge Sump - BLUE
    $349.00
    No reviews

    Welcome to First Class!   You don't want to miss out on these excellent craftsmanship.  Adorned in it's Black & Blue,...

  • Bashsea 20x20x16" CUBE Signature Series Sump - BLACK & WHITE
    $429.00
    No reviews

    NOTE: Check product title for color ordering Welcome to First Class!   You don't want to miss out on these...

  • Aqua Ultraviolet 80 WATT Classic UV Sterilizer - 2" in/out
    $1,098.37
    No reviews

    Features Easy Twist Cap For Easy Quartz Sleeve Maintenance Just One Cap To Twist For Access To The Quartz Sleeve....

  • IceCap Large External Pro Algae Scrubber
    $733.41
    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 12"
    $58.89
    No reviews

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

  • Two Little Fishes NPX Adaptor for Reactor 550
    $20.09
    No reviews

    Two Little Fishes NPX Adaptor for Reactor 550(reactor sold separately)   Capacity Use with up to a maximum of 1000...

  • Two Little Fishes NPX Adaptor for Reactor 150
    $18.15
    No reviews

    Two Little Fishes NPX Adaptor for Reactor 150   Capacity Use with up to a maximum of 400 ml NPX...

  • IceCap Turf Scrubber Pro Large
    $733.41
    No reviews

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

  • Pax Bellum C36 chamber liner
    $29.99 $40.00
    No reviews

    Add a liner to your chamber to make cleaning easier while maintaining the light reflectivity of your chamber walls for...

  • Pax Bellum C30 diffuser disc 3pk
    $29.99 $45.00
    No reviews

    The Pax Bellum c30 diffuser disc 3pk is a replacement component for the c30 ARID reactor consisting of 3 diffuser...

  • Pax Bellum C36 light sleeve
    $29.99 $40.00
    No reviews

    Pax Bellum Light Tube for the ARID C36 (36 and 30 pictured).

  • Pax Bellum C30 light sleeve
    $26.99 $35.00
    No reviews

    Pax Bellum Light Tube for the ARID C30 (30 and 36 pictured)

  • Pax Bellum C36 Calcium Reactor Feed & Injection Assembly
    $84.99 $120.00
    No reviews

    c36 Ca Feed & Injection Assembly    Use the ARID with a Calcium Reactor. The Ca injection assembly (Ca Reactor...

  • Octopus Light Reactor 6" - LR150
    $584.42
    No reviews

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

  • American Marine Pinpoint Co2 Regulator Kit
    $126.65 $149.00
    No reviews

    The PINPOINT CO2 Regulator Kit is now available. This is a high end regulator/solenoid engineered specifically for the aquarium hobby...

  • Reef Octopus 4" MF2000 Advanced Media Reactor
    $271.41
    No reviews

    MF 2000 Advanced Media Reactor Dim: 5.5″ x 5.5″ | Body Diameter: 4"″ | Height: 21.75″ Great for activated carbon,...

  • Bashsea 36x15x16" Tuxedo Signature Series Sump GEN 2 - BLACK & WHITE
    $559.00
    No reviews

    COLOR OPTIONS:     Welcome to First Class!   You don't want to miss out on these excellent craftsmanship.  Adorned in...

  • Trigger Systems Ruby Sump 20x20 cube
    $454.99
    No reviews

    Trigger Systems specializes in aquarium sump manufacturing. We manufacture all sumps here in Dallas, TX. We build each sump as...

  • Trigger Systems Ruby Sump 36x15x16
    $469.99

    OUT OF STOCK

    No reviews

    Trigger Systems specializes in aquarium sump manufacturing. We manufacture all sumps here in Dallas, TX. We build each sump as...

  • Eshopps Large Replacement U-Tube 1 1/2"
    $9.98

    OUT OF STOCK

    No reviews

    Eshopps Large Replacement U-Tube 1 1/2

  • IceCap 2.5L HOB Waste Collector
    $127.04
    No reviews

    Eliminate smelly skimmate build-ups and prevent skimmer overflows with this 3-in-one device. It collects large amounts of skimmate, controls strong...

  • TMC Reef Skim 2.0 500 DC Protein Skimmer
    $224.99
    No reviews

    The TMC Reef Skim 2.0 500 DC Protein Skimmer is a high-performance device designed for efficient and quiet operation in...

  • Red Sea REEFER Skimmer 300 DC Pump Upgrade Kit
    $250.00
    No reviews

    Upgrade Kit If you own a regular AC pump REEFER Skimmer, you can turn it into a smart DC skimmer...

  • Icecap K3-150HOB Skimmer
    $381.14
    No reviews

    IceCap K3 150HOB Protein Skimmer Convenient and Function Design The IceCap K3 150HOB Protein Skimmer is a compact hang-on-back protein...

  • Icecap K1 Neo Skimmer
    $69.29
    No reviews

    ULTRA Compact Protein Skimmer The IceCap K1 NEO is an ultra-compact skimmer that offers a new level of refined filtration...

  • Reef Octopus 4" Single Chamber w/Aquatrance 1200
    $438.89
    No reviews

    CR100 4 inch Calcium Reactor Footprint: 9.5″ x 7.5″ | Body Diameter: 4″ | Height: 20″ Recirculation Pump: Aquatrance 1200...

  • Reef Octopus 8.7" DC Calcium Reactor with Varios 6 Pump
    $1,027.94
    No reviews

    VarioS CR220 9 inch Calcium Reactor ApexReady Footprint: 16.5″ x 11″ | Body Diameter: 9″ | Height: 23″ Recirculation Pump:...

  • Reef Octopus 5.5" DC Calcium Reactor with Varios 2 Pump
    $773.84
    No reviews

    VarioS CR140 5.5 inch Calcium Reactor Footprint: 12.2″ x 9.1″ | Body Diameter: 5.5″ | Height: 23″ Recirculation Pump: Reef...

  • ISTA - Replacement Ceramic (for UFO CO2 Diffuser L)
    $9.31 $10.95
    No reviews

        Specific ceramic applied to assures most delicate CO2 diffusing effect.     Top quality design allows the replacement of the...

  • ISTA - Metal CO2/Air Flow Regulator - 6 ways
    $65.44 $76.99
    No reviews

        Can be used with all kinds of CO2 regulators.     Provides great convenience in dividing CO2 into 6 different...

  • ISTA - Metal CO2/Air Flow Regulator - 3 way
    $42.46 $49.95
    No reviews

    With this ISTA 3 Way splitter, you can connect up to three CO2 diffusers/supplies from a single CO2 cylinder. Each...

  • Bashsea Bio Reactor 8-18
    $469.00
    No reviews

    Please Note: Due to global supply shortages, Bashsea is temporarily manufacturing this product without the gate valve until shortages are...

  • Bashsea Bio Reactor 6-18
    $289.00
    No reviews

    Please Note: Due to global supply shortages, Bashsea is temporarily manufacturing this product without the gate valve until shortages are...

  • Premium DIY Kalkwasser Drip Kit
    $16.14 $18.99

    OUT OF STOCK

    No reviews

    Premium DIY Kalkwasser Drip Kit Add a container and start building your own Kalkwasser dripper with this DIY kit.  ...

  • Surf4 Floating Surface Ribbon Scrubber with Green Grabber Surfaces
    $474.99

    OUT OF STOCK

    No reviews

    SURF4 floating surface Ribbon Scrubber with Green Grabber surfaces - 4 cubes feeding per day   SURF4(TM) Surf Scrubber® Upflow...

  • TLF PhosBan Reactor GFO/CARBON Complete Package
    $169.99 $199.99

    OUT OF STOCK

    No reviews

    Save money and get everything necessary to startup your media reactor in this complete package! Includes: 2-TwoLittleFishies 150 Phosban Reactor...

  • Octopus Bio Churn 120INT Reactor
    $323.39
    No reviews

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

  • Octopus Bio Churn 90EXT HOB Reactor
    $381.14
    No reviews

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

  • Octopus 5.5" Single Chamber Calcium Reactor w/Aquatrance 2000
    $531.29
    No reviews

    Rated for Aquariums up to 150 Gallons Footprint: 12" x 11" | Body Diameter: 5.5" | Height: 24" Recirculation Pump:...

  • Octopus Bio Pellet Reactor 5.9" with WB2000 pump
    $641.01
    No reviews

    Designed with the hobbyist in mind, these all-in-one reactors are simple to setup up, saves valuable space and conserves costly...

  • Octopus Pellet Reactor 2.75" diameter x 14.5"
    $213.66
    No reviews

    Rated up to: 100 gallons Holds: 400ml | Dim: 3.875″ x 3.875″ | Body Diameter: 2.75"″ | Height: 19.3″ Requires...

  • Octopus Pellet Reactor 5.5" diameter x 14.5"
    $352.26
    No reviews

    Rated up to: 475 gallons Holds: 2000ml | Dim: 8.3″ x 8.3″ | Body Diameter: 5.5"″ | Height: 20.9″ Requires...

  • Octopus Pellet Reactor 4.3" diameter x 14.5"
    $282.96

    OUT OF STOCK

    No reviews

    Biopellet Reactor specifically designed for the use of solid carbon dosing biopellets These Revolutionary Media Reactors have a fluidizing cone...

  • Sicce PSK SDC 2600 Skimmer Pump
    $469.99
    No reviews

        PSK SDC pumps are the latest generation of pumps for skimmer applications and incorporate integrated intelligence systems for...

  • Bubble Magus ACS250 Cleaning Head
    $149.99
    No reviews

    ACS 120 - 120MM diameter - Can be used for the curve 5   ACS 150 - 150MM diameter -...

  • Bubble Magus ACS150 Cleaning Head - fits Curve 7
    $109.99

    OUT OF STOCK

    No reviews

    ACS 120 - 120MM diameter - Can be used for the curve 5   ACS 150 - 150MM diameter -...

  • Bubble Magus ACS120 Cleaning Head - fits Curve 5
    $109.99
    No reviews

    ACS 120 - 120MM diameter - Can be used for the curve 5   ACS 150 - 150MM diameter -...

  • Eshopps Lift Skimmer Stand Medium
    $54.99
    No reviews

    Eshopps LIFT   Ideal for quick height adjustments up to 1.5” Leveling bevel ensures skimmer sits level and flat Rubberized...

  • Icecap K1 200 Skimmer
    $307.99
    No reviews

    IceCap K1-200 Protein Skimmer Footprint: 10.23" x 8.5" | Reaction Chamber: 8" | Height: 22" Skimmer Pump: EVair 900 Bioload...

  • Icecap K1 160 Skimmer
    $219.99
    No reviews

    IceCap K1-160 Protein Skimmer Footprint: 6.7" x 8.5" | Reaction Chamber: 6" | Height: 21" Skimmer Pump: EVair 600 Bioload...

  • Icecap K1 130 Skimmer
    $196.34
    No reviews

    IceCap K1-130 Protein Skimmer Footprint: 7.3" x 5.6" | Reaction Chamber: 5" | Height: 19" Skimmer Pump: EVair 400 Bioload...

  • Eshopps PSK-1200 Replacement Impeller
    $93.99

    OUT OF STOCK

    No reviews

    Eshopps PSK-1200 Replacement Impeller  (for the Eshopps S300)