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On Sale 40%
(USED) A80 Tuna Sun Freshwater/Planted Aquarium LED - Kessil
Kessil$139.00$83.99USED - TESTED - WORKS DesignInnovative heat dissipation allows for fanless, low maintenance, shell-shaped design. Advanced optics create smooth color mixing and a beautiful shimmer.Dense Matrix LED ArrayOur unique, efficient Dense Matrix LED array is... -
On Sale 40%
(USED) Whale 200 Aquarium Canister Filter 25-50 Gal (190 gph) - Sicce
Sicce$139.99$83.99USED - TESTED - WORKSWhale External Aquarium FilterSicce has been manufacturing industry-leading pumps for years. Recently, we challenged our engineers to develop a canister filter that offers exceptional value to customers without sacrificing quality or... -
On Sale 40%
(USED) H80 Tuna Flora LED Refugium Grow Light - Kessil
Kessil$139.00$83.99USED - TESTED - WORKS The H80 Tuna Flora features four efficient spectrums - BLUE, GROW, BLOOM, RED - in one single fixture. The light is perfectly blended, with wavelengths including true UV and Infrared (ranging from 360-780 nm), enhancing... -
On Sale 38%
(USED) Sicce PSK 1000 Replacement Skimmer Pump
Sicce$134.99$83.99USED - TESTED - WORKS SICCE PSK Protein Skimmer Pumps Engineered from the ground up for superior performance, cooler operation, and low noise. A skimmer is only as good as the pump. PSK1000 - 1000 gph -
On Sale 9%
(OPEN BOX) 72" Serene Background LED Light Kit (3154) - Current USA
Current USA$87.95$79.99UNUSED CUSTOMER RETURN See beyond a static color background and add dramatic depth where additional fades and shades make all the difference. Not only will it change the way you view your aquarium, it enhances the ambiance of any room. Fits aquariums... -
On Sale 24%
(OPEN BOX) Aquasky (24"-36") Bluetooth Aquarium LED - Fluval
Fluval$104.99$79.99Operated exclusively via the FluvalSmart App on your mobile device, Aquasky allows you to control the light output of red, green blue and super bright 6500K white LEDs for infinite color blends. Programmable, gradual 24-hour light cycle settings... -
On Sale 11%
PURE Reef Salt Mix (20kg Bucket) - NYOS
NYOS$89.99$79.99PURE, Trustworthy, & Consistent Ultra-pure, pharmaceutical grade ingredients No yellow tinge Quick solubility Consistent quality Near-natural mineral levels Improves color, growth, and polyp expansion of corals ICP controlled and... -
(DAMAGED) FLEX 57L 15 Gallon Aquarium Stand Black (16.3 x 14.4 x 29.5 in) - Fluval
Fluval$79.99DAMAGED IN PALLET SHIPPING - NICKS AND SCUFFS This stylish aquarium stand is designed to coordinate seamlessly with the Fluval Flex 57L aquarium (Item #15006). Classic, stylish black colour. Curved stand follows the smooth contours of... -
On Sale 11%
(OPEN BOX) 60" x 31" Customizable DIY Aquarium Screen Net Cover Kit (R42083) - Red Sea
Red Sea$89.99$79.99UNUSED CUSTOMER RETURN Customizable DIY Aquarium Net Cover COMES UNASSEMBLED IN A TUBE - YOU MUST CUT AND BUILD THIS YOURSELF STOCK PHOTO SHOWS WHAT CAN BE DONE WITH EXTRA PARTS SOLD SEPARATELY - THIS KIT ONLY MAKES A MAX SIZE RECTANGLE... -
On Sale 20%
Aquatrance Water Circulation Pump AQ3000 - Reef Octopus
Reef Octopus$99.99$79.99Efficient water pumps provide exceptional performance at an economical price. Great for return pumps and/or feed pump for media reactors. Max Flow: 925gph /Max Head: 9ft Great for Feeding Flow to Reactors and Recirculating... -
On Sale 39%
(USED) Orbit Marine LED Fixture 18"- 24" (Gen 1) w/LOOP Control (4100) - Current USA
Current USA$129.95$78.99USED - TESTED - WORKS This is the Original Gen 1 Orbit Marine LED Now with LOOP Control. Perfect for Fish Only Aquariums and Soft Corals. Right from the start, there’s a lot to love about the Orbit Marine. It’s simple, yet... -
On Sale 9%
(DAMAGED BOX) Reef Salt (55 lb - 200 Gallons) Bag - Aquaforest
Aquaforest$82.49$74.99BAG DAMAGED AND TAPED, REBOXEDFully synthetic marine salt created for cultured corals. Its formula is designed to create the best conditions for marine animals. The micronutrients and macronutrients contained in the formula fully fulfill the demand of... -
On Sale 10%
(OPEN BOX) Micro Aquarium Auto Top Off ATO - PNW Customs
PNW Custom$79.99$71.99UNUSED CUSTOMER RETURN The Micro Aquarium Auto Top Off is designed to fit in the Micro Reef-Ready Tank sump, Small-In-One Aquarium, and just about every other tank sizing up to 40 gallons. An Auto Top Off will significantly boost your tank's stability... -
On Sale 40%
(USED) Sicce PSK 600 Replacement Skimmer Pump
Sicce$119.99$71.99USED - TESTED - WORKS SICCE engineer their skimmer pumps SK & PSK from the ground up to run with maximum efficiency, low heat and reliability to produce pumps that are beyond compare. Every component of the entire pump, not just the... -
On Sale 40%
(USED) PINPOINT ORP Monitor - American Marine
American Marine$114.99$68.99USED - CUSTOMER RETURN - TESTED- CALIBRATED- WORKS 100% PINPOINT® ORP Monitor will measure the ORP (oxidation-reduction potential, or REDOX) of your system. It is popular with those who use ozone gas or potassium permanganate as an artificial... -
On Sale 9%
(OPEN BOX) SHARK PRO 900 Internal Filter (238 gph) - Sicce
Sicce$74.99$67.99UNUSED - TESTED - WORKSThe new Shark PRO is a completely redesigned internal filter. The new models come with upgraded materials and Innovative design. The new Shark PRO stands alone with unique magnetic system and larger filtration capacity... -
On Sale 39%
(USED) Ultra Zero Utility Water Mixing Pump - Sicce
Sicce$109.99$66.99USED _ TESTED _ WORKS The Sicce ultra zero utility pump is scientifically designed for pumping cloudy water without a large debris content. This multi-purpose pump is ideal for solving many issues associated with domestic hydroponic and aquatic... -
On Sale 10%
(USED) 800 Watt THH-0800 Titanium +Sensor w/Guard (140-265 Gallon) - Finnex
Finnex$72.99$65.99USED-TESTED-WORKS This Heating Element Required a Heating Controller to Operate! - https://www.saltwateraquarium.com/hc-810m-digital-temperature-controller-up-to-800-watts-finnex/ The THH heater series are designed to be used with an external... -
On Sale 8%
Sea Salt Mix Bucket (Makes 160 Gallons) - Instant Ocean
Instant Ocean$71.99$65.99Instant Ocean® Sea Salt is the most carefully formulated and universally preferred sea salt in the world. The #1 choice of hobbyists, public aquariums, and scientific research facilities, Instant Ocean Sea Salt has set the industry standard for... -
On Sale 39%
(USED) Aquasky (24"-36") Bluetooth Aquarium LED - Fluval
Fluval$104.99$63.99USED - TESTED - WORKS Operated exclusively via the FluvalSmart App on your mobile device, Aquasky allows you to control the light output of red, green blue and super bright 6500K white LEDs for infinite color blends. Programmable, gradual... -
On Sale 10%
(OPEN BOX) (1-3 Lights) AI Blade Hanging Kit - Aquaillumination
AquaIllumination$69.99$62.99UNUSED CUSTOMER RETURN A Sleek & Easy Way to Hang your Blade LED Strips! Compatible with all versions of Blade Three available sizes to hang up to 6 Blade light fixtures Finding a mounting solution that works for your aquarium and lighting... -
On Sale 10%
(OPEN BOX) WHITE Hybrid T5HO Light Fixture Hanger - 10 lb Max - Aquatic Life
Aquatic Life$69.99$62.99UNUSED CUSTOMER RETURN Aquatic Life's Universal & Hybrid Fixture Hanger is a premium mounting option that allows you to suspend aquarium light fixtures over your tank and easily attaches to your aquarium stand. Use for Aquariums or Indoor Gardening... -
On Sale 10%
(DAMAGED BOX) Syncra "Silent" Pump Model 1.5 (358 gph) 6 ft. Head - Sicce
Sicce$69.99$62.99BOX CRUNCHED - PUMP UNTOUCHED The Syncra Silent is new range of energy efficient pumps that is absolutely silent. Don't be fooled - these pumps are powerful and versatile. Ideal for fresh and salt water aquariums, protein skimmers, indoor fountains,... -
On Sale 9%
(OPEN BOX) eFlux LOOP Accessory Wave Pump 660 GPH (Pump Only) - Current USA
Current USA$67.96$61.99UNUSED - TESTED - WORKS Movement SynchronizedSimulating natural water currents found on coral reefs, eFlux™ controllable wave pumps provide tank wide circulation, improving water quality and promoting strong coral growth and fish health... -
On Sale 40%
(USED) Orbit Marine 18"- 24" IC LOOP LED (4104) - Current USA
Current USA$99.99$59.99USED - TESTED - WORKSHigh output saltwater reef lighting systems include wireless remote control, IR light & pump controller, IC light manifold HUB 12VDC power supply and adjustable docking mounts. Fully upgradeable to Bluetooth for mobile device... -
On Sale 40%
(USED) Syncra "Silent" Pump Model 2.0 (568 gph) 7.9 ft. Head - Sicce
Sicce$99.99$59.99USED - TESTED - WORKSThe Syncra Silent is new range of energy efficient pumps that is absolutely silent. Don't be fooled - these pumps are powerful and versatile. Ideal for fresh and salt water aquariums, protein skimmers, indoor fountains, water-cooling... -
On Sale 9%
(OPEN BOX) Rock SP1000 Skimmer Replacement Pump - Bubble Magus
Bubble Magus - Seaside$64.99$58.99UNUSED CUSTOMER RETURNBubble Magus SP1000 Replacement Pump. New Bubble Magus SP pump, quiet and more efficient than the atman pump. -
On Sale 27%
(DAMAGED) Seiryu Stones (7 Piece) Matched Set - Current USA
Current USA$79.95$57.99ONE SNAPPED A.S. Designs molded Seiryu Stones feature the same sharp edges, detailed crevices and deep cuts found in natural stone. Collection of 7 stones will aquascape an aquarium up to 30 inches (30G) and are the actual rocks you will receive,... -
On Sale 39%
(USED) QQ1 Hang-On Back Skimmer - Bubble Magus
Bubble Magus - Seaside$89.99$54.99USED - TESTED - WORKS Efficient and ease-to-use skimmer for aquariums up to 25 gallons. Great features including a needle-wheel pump, easy to adjust body and foam bubble reducer on the outlet. Specifications Rated for tank up to 25gal Includes Rock... -
On Sale 10%
(OPEN BOX) VCA Flex Series - Ultimate XL Return Line Upgrade Kit - Dual 3/4 Flex-Series RFG - Vivid Creative
VCA Vivid Creative$59.99$53.99UNUSED CUSTOMER RETURN Red Sea Reefer™ Compatible Plus, many other aquariums using the included Multidapter™ Universal Pipe Adapter Kit Includes: The Patented Random Flow Generator® Nozzles2 x 3/4in Flex-Series Random Flow... -
On Sale 14%
(OPEN BOX) 36"-48" Serene Background LED Light Kit (3152) - Current USA
Current USA$62.95$53.99UNUSED CUSTOMER RETURN See beyond a static color background and add dramatic depth where additional fades and shades make all the difference. Not only will it change the way you view your aquarium, it enhances the ambiance of any room. Fits aquariums... -
On Sale 10%
(OPEN BOX) SICCE Scuba 400 Watt Contactless App Adjustable Aquarium Fish Tank Heater Smartphone Controlled via NFC
Sicce$59.99$53.99UNUSED - TESTED - WORKS Innovative heater range equipped with PATENTED "contactless" temperature electronic control. The easiest and most immediate way to set the temperature of the heater, just hold the... -
On Sale 29%
(DAMAGED) ALPHA Frag Rack GIGA (24 Plug) Magnetic - Eshopps
Eshopps$74.98$52.99ONE MAGNET HOUSING REGLUED Specifications: Dimensions - 13" x 2.75" Plug Capacity - 24 Magnets - 2 -
On Sale 12%
(OPEN BOX) Red Sea Reefer XXL Ultimate Return Line Upgrade Kit (25mm to 3/4") - Vivid Creative
VCA Vivid Creative$59.99$52.99UNUSED CUSTOMER RETURN Red Sea Reefer Ultimate XXL Return Line Upgrade – 25mm to 3/4in RFG Simply the Easiest Way to Upgrade the Flow of your Red Sea Reefer Return Nozzle Kit Includes: – 25mm to 3/4in Slip-fit Loc-Line Adapter... -
On Sale 11%
(DAMAGED BOX) Syncra Silent Water Pump 1.0 (251 gph) 5 ft. Head - Sicce
Sicce$55.99$49.99DAMAGED BOX - UNIT UNTOUCHED The Syncra Silent is new range of energy efficient pumps that is absolutely silent. Don't be fooled - these pumps are powerful and versatile. Ideal for fresh and salt water aquariums, protein skimmers, indoor fountains,... -
On Sale 50%
Premium Reef LARGE Shelf Rock - Cornerstone
Cornerstone$99.99$49.99These are LARGE Shelf peices. They average 15-18" in length, 10-12 lbs. Some are larger, some are slightly smaller but not by much. Cornerstone Reef Rock is the new standard of premium live rock alternatives. Build the seasoned look of a... -
On Sale 9%
(OPEN BOX) AP700 Extension Tube Tank Mount - Kessil
Kessil$55.00$49.99UNUSED CUSTOMER RETURN What's in the Box I Extension Tube (x2) II Coupling (pre-installed with M4 ROUND HEAD HEX SCREW, L=5mm) (x2) III M4 phillips wood screw (x8) IV M5 thumb screw (x4) -
On Sale 9%
(OPEN BOX) HC-820M Digital Heater Controller +Sensor - Finnex
Finnex$54.99$49.99UNUSED CUSTOMER RETURN The HC-820M Finnex heater controller uses an advanced digital processor that monitors and controls the water temperature in your aquarium. The heating controller receives temperature data from the remote sensor... -
On Sale 22%
(DAMAGED BOX) HI781 Saltwater Nitrate Low Range Checker - Hanna Instruments
Hanna Instruments$63.95$49.99Get accurate water testing results with the HI781 Marine Nitrate Low Range Colorimeter. With a digital read out, there is no more struggling to determine colors visually. This nitrate tester's compact design fits in your pocket or stores easily in... -
On Sale 8%
(DAMAGED BOX) Triton ICP-OES Water Test w/Prepaid Shipping Label - Triton Labs
Triton$49.00$44.99BOX DAMAGE Now Includes a Prepaid USPS First Class Shipping Label + Testing is Now Done in the USA! The results of this test provide you with the most detailed analysis of marine aquarium water you've ever seen, enabling you to understand exactly...