Clearance (99)
Best selling Best selling
  • Fritz Super Sack 5x9" Filter Bag - 2pk
    $6.99
    No reviews

    Fritz Super Sacks are premium quality refillable and reusable mesh bags suitable for most types of media - customize your...

  • Aquael ULTRA HEATER 25W
    $29.99 $56.99
    No reviews

    BRAND NEW CLOSEOUT SALE    ULTRA HEATER HEATING EXPERT A new generation of aquarium heaters distinguished by their impact-resistant plastic...

  • CaribSea LifeRock Shelf Rock 40 lb
    $129.99 $169.99

    OUT OF STOCK

    No reviews

    CaribSea LifeRock Shelf Rock 40 lb LIFEROCK Real aragonitic base rock, not cement, no curing. Extensive macro and micro-porosity infused...

  • Your Choice Aquatics Bio-Plate Filter Media - 2 Pack
    $16.99 $29.99
    No reviews

    Your Choice Aquatics Bio-Plate Filter Media - 2 Pack High Performance Bio Filter Media   Features - Increased Beneficial Bacteria...

  • AQQA Submersible Aquarium Fluidized Bed Filter - L
    $10.00 $19.99

    OUT OF STOCK

    No reviews

    Submersible Aquarium Fluidized Bed Filter   • Tumble Aquarium Filter: - Imitates natural filtering, uses new material, cultivates bacteria, no...

  • Hanna Marine Low Range Nitrate Reagent Refill for 25 Tests - EXPIRE 11/2025
    $9.99 $24.99

    OUT OF STOCK

    No reviews

    Get your replacement reagents for your HI781 Marine Nitrate Low Range Colorimeter today. These high-quality reagents are manufactured in our...

  • Kolar Labs 454g Crystal Cal Carbon Catalyic
    $19.99 $44.36
    No reviews

    Kolar Labs 454g Crystal Cal Carbon Catalyic Kolar Labs Crystal Cal is a premium, laboratory grade, granular activated carbon designed...

  • Eshopps Combo Pro Plumbing Kit
    $16.99 $19.99
    No reviews

    Pro Plumbing Kit ESHOPPS delivers the total package in simplicity and sophisticated design. Dedicated specifically for use with the Eclipse...

  • AquaReady HOB-R Hang-On-Back Refugium - DAMAGED UNIT- SOLD AS IS
    $50.00 $149.99

    OUT OF STOCK

    No reviews

    These units are being sold AS IS. They are broken at the outlet spot that is shown in the photo....

  • Fauna Marin AEFW X 500 ml- EXP 6/25
    $1.99 $54.99
    No reviews

    SAVE 60%- STILL GOOD TO USE- EXPIRE 6/25   Fauna Marin AEFW X is a pest control solution that works...

  • Finnex TH-S Series 800 Watt Titanium Heating Element - BRAND NEW BOX RETURN
    $45.59 $56.99

    OUT OF STOCK

    No reviews

    BRAND NEW OPEN BOX RETURN  - SAVE 20%   The Titanium Finnex Heaters are corrosion-resistant, extending the life exponentially from...

  • Fauna Marin LPS Grow and Color Medium-250 ml- EXPIRE 2/25
    $1.99 $63.79

    OUT OF STOCK

    No reviews

    SAVE 60%- STILL GOOD TO USE- EXPIRE 2/25   Achieve Optimal Growth and Enhanced Color in LPS and Azoox Corals...

  • JBJ Algae Scrubber Floating Md
    $13.60 $16.00

    OUT OF STOCK

    No reviews

    AquaScraper Float Acrylic Algae Scraper Product Details and Features Works great on glass or acrylic aquariums, without scratching the surface....

  • Innovative Marine Gourmet Grinder
    $6.99 $16.00
    No reviews

    Gourmet Grinder – Improving the Daily Grind Long work hours and busy schedules no longer prevent you from implementing a...

  • Fauna Marin Bacto Reef Balls 250 ml- EXPIRE 6/25
    $1.99 $43.99

    OUT OF STOCK

    No reviews

    SAVE 60%- STILL GOOD TO USE- EXPIRE 6/25   Easily Deposit Millions of Live Reef-Bacteria and Enzymes into a Reef...

  • Seapora Nitrate & Nitrite Filtration Pad - 10x18" (3 Pack)
    $9.99 $26.97

    OUT OF STOCK

    No reviews

    3 Pack - Total of 3 Nitrate Filtration Pads Nitrate + Nitrite Pad - 18" x 10" The Seapora Nitrate...

  • Red Sea Tank Net Screen Profile 36 / 91cm (2pcs)- OPEN BOX RETURN
    $26.99
    No reviews

    OPEN BOX RETURN- SAVE 15%   Net Cover Profile | Item codes R42091   91cm/36″- R42091 -2   

  • Eshopps Blue Pro Plumbing Kit
    $16.99 $19.99
    No reviews

    Pro Plumbing Kit ESHOPPS delivers the total package in simplicity and sophisticated design. Dedicated specifically for use with the Eclipse...

  • Aquatic Life RO Buddie Carbon Cartridge
    $8.49 $9.99
    No reviews

    Carbon Block Pre-Filter Cartridge for the RO Buddie. Features: Designed for use with the RO Buddie 50 & 100 GPD...

  • Tunze Stream 2 - 6085 Pump
    $139.99 $199.99

    OUT OF STOCK

    No reviews

    Eco-energetic and extremely silent The new Turbelle stream 2 is a very compact propeller pump with a well-thought-out design used...

  • Fauna Marin Cili Dip 1000ml- EXP 9/25
    $4.99 $43.99
    No reviews

    SAVE 60%- STILL GOOD TO USE- EXP 9/25   ONCE you open use within 12 months   Safe and Effective...

  • ME Coral 32 OZ Alkalinity Liquid
    $12.74 $14.99
    No reviews

    MECoral 32 oz Kh liquid solution is ready to use.  MECoral uses only Pharmaceutical Grade raw material to achieve the...

  • Hydor Sm Black Foam Pad 150 Pro Canister 2/pc
    $19.99
    No reviews

    CLEARANCE 50% OFF Coarse Black Sponge is for mechanical filtration to capture large debris. 2 per pack

  • AutoAqua Smart Auto Water Changer Lite - BRAND NEW OPEN BOX RETURN
    $191.99 $239.99

    OUT OF STOCK

    No reviews

    NEW OPEN BOX RETURN, SAFETY SEAL WAS CUT, COMPONENTS LOOK UNTOUCHED - SAVE 20%   Innovative 2 in 1 Auto-Top-Off...

  • AUTOAQUA Smart Doser 4- NEW - BRAND NEW OPEN BOX RETURN
    $187.49 $249.99

    OUT OF STOCK

    No reviews

    BRAND NEW OPEN BOX RETURN - SEAL WAS CUT AND BOX OPEN, BUT ALL COMPONENTS LOOK UNTOUCHED   Smart Doser...

  • IceCap In-Sump 27w UV Sterilizer - BRAND NEW RETURN
    $302.70 $336.42

    OUT OF STOCK

    No reviews

    CUSTOMER RETURN, NEVER REMOVED FROM BOX, OPENNED BOX ONLY. BRAND NEW, SAVE 10%   Ultraviolet Light Aquarium Water Clarification Made...

  • Two Little Fishes AcroPower Amino Acids for SPS corals - 500ml - Expired 2/2026
    $7.99 $22.70

    OUT OF STOCK

    No reviews

    Brand New Expired 2-2026 - Should be able to get a few more months out of it. Two Little Fishes...

  • American Marine Pinpoint Dual Stage Temp Controller
    $182.75 $215.00
    No reviews

    PINPOINT® Temperature Controller is an inexpensive but rugged controller that can be used for a chiller or a heater; or...

  • JBJ 20 Gallon Stand - Black
    $272.00 $320.00
    No reviews

    JBJ 10 Gallon Stand for NRL 20 - Black   Dimensions: 15” × 12” × 36” in   Finish: Gloss...

  • PaxBellum Nitrate & Molybdenum Supplements 250ml 5% Solution
    $6.99 $18.00
    No reviews

    Nitrogen + Molybdenum solution to maintain optimal N:P ratio in your aquarium. Dose as needed to maintain NO3:PO4 ratio between...

  • Reef Factory Dosing Pump Holder (1 unit)
    $9.99 $17.76
    No reviews

    Reef Factory Dosing Pump Holder (1 unit) Mounting bracket for one dosing pump. With the shelf, you can aesthetically and...

  • Triton Magnesium 5000ml
    $82.50 $165.00
    No reviews

    Magnesium macro element seawater supplement. Magnesium is an important element that naturally occurs in seawater. Essential for calcification of SPS/LPS...

  • JBJ Reaction Power Filter - 50 Gallons
    $35.70 $42.00
    No reviews

    Reaction HOB Hang-On-Back Aquarium Filter Product Details and Features JBJ Reaction Power Filters hang compactly on the back of your...

  • SunSun 2W, 2 outlet Air Pump w/ Battery
    $38.24 $44.99
    No reviews

    SunSun 2W, 2 outlet Air Pump w/ Battery The JT-203S is a 2 outlet air pump that works with freshwater...

  • Reef Fanatic Solenoid Valve - 2 prong
    $42.46 $49.95
    No reviews

    110V electronic solenoid valve for CO2 regulator.   Features: LED on/off light indicator Power cord Specs: Trade Size Threads per...

  • Bubble Magus Liquid Dosing Container 2.5L / Stackable
    $47.59 $55.99
    No reviews

    Bubble Magus Liquid Dosing Container 2.5L / Stackable

  • PolypLab Acids 50ml
    $18.00 $29.00
    No reviews

    III. RF-Acids Concentrated fusion of select amino acids The role of amino acids becomes critical in a low nutrient environment....

  • IceCap Small External Pro Algae Scrubber - NEW OPEN BOX RETURN
    $233.88 $311.84
    No reviews

    NEW OPEN BOX RETURN - LOOKS BRAND NEW IN THE BOX, OUTSIDE PRODUCT BOX IS PRETTY BEAT UP FROM SHIPPING....

  • Bubble Magus Z6 Protein Skimmer - NEW OPEN BOX RETURN
    $143.99 $179.99
    No reviews

    NEW OPEN BOX RETURN - BOX WAS OPENNED, NEVER USED.   Bubble Magus Z6 Protein Skimmer   Small space save...

  • Red Sea MCP NO2/NO3 Test - 60/100 tests - Expires 3/2026
    $9.99 $29.99

    OUT OF STOCK

    No reviews

    BRAND NEW - EXPIRE DATE IS 3/2026. Most likely will be good several months past the expire date. Red Sea...

  • Finnex 300W THD Titanium Heater Element - NEW OPEN BOX RETURN
    $31.99 $39.99
    No reviews

    NEW OPEN BOX RETURN - Box has been openned, not used. Customer didn't realize they didn't include a controller, so...

  • Finnex Planted+ 3.0 Aquarium LED Fixture - 48" - NEW OPEN BOX RETURN
    $99.99 $125.99
    No reviews

    NEW OPEN BOX RETURN - Was returned almost immediatly after receiving, brand new condition. Box was openned and possibly turned...

  • Tunze Osmolator 3 Nano - OPEN BOX RETURN
    $119.99 $149.99
    No reviews

    OPEN BOX RETURN- SAVE 20%   The TUNZE® Osmolator 3 nano is a simple and safe device with just one...

  • Eheim Jager Trutemp Submersible Aquarium Heater - 300w - NEW OPEN BOX RETURN
    $31.99 $39.99
    No reviews

    NEW OPEN BOX RETURN -  SAVE 20%   Obvious ideas often are the best ones. For example, the aquarium heater...

  • Tropic Eden Morroca Single Cave Rock - ONE- Piece (2-2.5bs) - WYSIWYG
    $24.99
    No reviews

    NOTES: This is the exact piece you will receive. WYSIWYG. This is a single cave, but it's lower and more...

  • PAN WORLD MODEL 150PS EXTERNAL PUMP (md55R equivalent)- NEW REPAIRED OPEN BOX
    $199.99 $289.99
    No reviews

    BRAND NEW PUMP WAS DAMAGED IN SHIPPING, THE EXTERNAL FAN WAS DAMAGED. WE HAVE REPLACED THE FAN AND IT'S BASICALLY...

  • Finnex HMU-50S Heater - USED RETURN POSSIBLE ISSUE
    $31.99
    No reviews

    USED RETURN as defective. We tested and comes on and heats in small water sample. Selling 70% OFF. Could work...

  • Finnex StingRay 1.0 LED Light Fixture - 20" - OPEN BOX RETURN
    $38.99 $51.99
    No reviews

    OPEN BOX RETURN, RETURNED WITHIN FEW DAYS. PRODUCT BOX A LITTLE BEAT UP, LED APPEARS TO BE BRAND NEW, POSSIBLY...

  • Finnex Planted+ 3.0 Aquarium LED Fixture - 48" - BRAND NEW RETURN OPEN BOX
    $99.99 $125.99
    No reviews

    BRAND NEW OPEN BOX - SEAL CUT TO OPEN BOX, EVERYTHING IS BRAND NEW INSIDE   High PAR fixture alert!...

  • JBJ Nano Glo LED Refugium Light for Aquarium- OPEN BOX RETURN
    $60.80 $76.00
    No reviews

    OPEN BOX RETURN- SAVE 20% JBJ introduces the NANO-GLO LED to upgrade your existing Nano Cube into an “In-Tank” Refugium....

  • Tropic Eden Morroca Reef Rock - WYSIWYG (Medium Irr w/2ext, Medium Irr w/1ext)
    $64.18
    No reviews

    NOTES: This is 2 Pieces total. These are the exact piece you will receive. WYSIWYG.  Includes: One Medium Irregular w/2 Extensions,...

  • Finnex Planted+ HLC LED Light Fixture - 36" - BRAND NEW OPEN BOX RETURN
    $104.24 $138.99
    No reviews

    Finnex Planted+ HLC LED Light Fixture - 36" - BRAND NEW OPEN BOX RETURN. SAVE 25%   HLC Series Overview...