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On Sale 32%
On Sale 32%(OPEN BOX) Orbit Marine LED Fixture 18"- 24" (Gen 1) w/LOOP Control (4100) - Current USA
Current USA$129.95$87.99UNUSED CUSTOMER RETURN 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 39%
On Sale 39%(USED) MC120 PH Monitor w/Probe & Mounting Kit - Milwaukee Instruments
Milwaukee Instruments$139.95$84.99USED - TESTED - WORKS The MC Monitors are designed to continuously monitor pH, EC or TDS values directly in your reservoir. Each unit features a user select able set-point. An LED visual alarm is activated and flashes when the pH, EC or TDS level rises... -
On Sale 39%
On Sale 39%(USED) Orbit Marine LED Fixture 24"- 36" (Gen 1) w/LOOP Control (4101) - Current USA
Current USA$139.95$84.99USED CUSTOMER RETURN 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 fully... -
On Sale 11%
On Sale 11%(OPEN BOX) eFlux LOOP Wave Pump 660 GPH (Complete Kit) - Current USA
Current USA$89.99$79.99UNUSED CUSTOMER RETURN Wireless wave pump systems include eFlux wave pump, magnetic swivel bracket, eFlux Wave Pump LED display with IR remote control, eFlux Wave Pump manifold HUB (connects up to 3 eFlux pumps), prefilter pad and 24VDC power supply... -
On Sale 10%
On Sale 10%(OPEN BOX)) Dual Adjustable LED Light Mounting Arm Kit (4192) - Current USA
Current USA$79.95$71.99UNUSED CUSTOMER RETURN This dual LED light adjustable arm kit features two aluminum arms and universal tank mount brackets for both rimless and framed aquariums (up to 1.5″ thick.) Fits most Current-USA LED lights from 24″ to 72″ in... -
On Sale 14%
On Sale 14%(OPEN BOX) ULTRA Thin Aquarium Heater 200 Watt - AquaEl
AquaEl$81.72$69.99UNUSED CUSTUMER RETURNED The heater is easy to control using the ONE-TOUCH system that employs a single button surrounded by a ring of LEDs indicating the current and set temperatures. The electronic thermostat operates with an exceptional precision... -
On Sale 13%
On Sale 13%(OPEN BOX) eFlux LOOP Accessory Wave Pump 1050 GPH (Pump Only) - Current USA
Current USA$79.99$69.99UNUSED CUSTOMER RETURN 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 8%
On Sale 8%(OPEN BOX) White Aquarium Controller Accessory Shelf - Adaptive Reef
Adaptive Reef$74.99$68.99UNUSED CUSTOMER RETURN Expand your Adaptive Reef Mounting board with a matching shelf. Perfect for mounting equipment like dosing pumps, dosing liquids, etc. Shelf Dimensions: 13"L x 8"W -
On Sale 11%
On Sale 11%(OPEN BOX) SHARK PRO 500 Internal Filter (132 gph) - Sicce
Sicce$69.99$61.99UNUSED CUSTOMER RETURNThe 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 43%
On Sale 43%(USED) 30" Planted+ 24/7 Version 2 CC (KL-C30A) Freshwater LED - Finnex
Finnex$104.95$59.99USED - TESTED - WORKS The Finnex Planted+ 24/7 LED fixture allows a hands free simulated sunrise & sunset to take effect atop user's aquariums. The 24/7 feature starts with a cool lit dawn, transitions in to a warm sunrise morning, followed by an... -
On Sale 33%
On Sale 33%(OPEN BOX) Orbit Marine IC LOOP (18"- 24") Accessory LED Light Fixture ONLY (4124)- Current USA
Current USA$89.96$59.99UNUSED CUSTOMER RETURN This light fixture is an accessory LED light for existing Orbit IC LED systems with a LOOP® controller. It cannot be used as a stand-alone light fixture and must be connected to an Orbit IC light manifold HUB with a... -
On Sale 14%
On Sale 14%(OPEN BOX) AI Hydra 32/64 Flex Arm 18" - Aqua Illumination
AquaIllumination$69.99$59.99OPEN BOX New Mounting Design Now available for the Hydra 32HD and Hydra 64HD, flex arm mounting is no longer reserved for the AI Prime alone. The Hydra Flex Arm is the simplest and cleanest full size fixture mount to date. -
On Sale 48%
On Sale 48%(USED) PINPOINT ORP Monitor - American Marine
American Marine$114.99$59.99USED - TESTED - WORKS 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 oxidation agent in fresh or saltwater... -
On Sale 9%
On Sale 9%(OPEN BOX) 20 Hole Premium Medium Frag Rack (3/4" Glass) Green w/Frag Lock & Reinforced Magnets - PNW Customs
PNW Custom$64.99$58.99UNUSED CUSTOMER RETURN This UPGRADED Rack has 3x Magnets that are DESIGNED to hold on 3/4" Glass! PREMIUM FRAG RACK - MEDIUM Holds up to 20 Frag Plugs Dimensions: 10" x 4" NEW FEATURES: Slip and Scratch Resistant Magnet Bar Removable Magnet... -
(DISCONTINUED) HC-820M Digital Heater Controller +Sensor - Finnex
Finnex$54.99The 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 in the aquarium. The remote... -
On Sale 44%
On Sale 44%(USED) Syncra "Silent" Pump Model 1.5 (358 gph) 6 ft. Head - Sicce
Sicce$89.99$49.99USED - TESTED - WORKS 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 11%
On Sale 11%(OPEN BOX) E300 Watt Digital Aquarium Heater (up to 100 Gallons) - Fluval
Fluval$56.28$49.99TOGGLE CLIP SNAPPPED _ STILL WORKS - UNUSED E-Series is the only digital heater range on the market to offer dual-sensor VueTech® microprocessor technology, which continuously displays accurate water temperature and visually alerts the user of any... -
On Sale 57%
On Sale 57%(OPEN BOX) Aquasky (24"-36") Bluetooth Aquarium LED - Fluval
Fluval$115.99$49.99Operated 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 17%
On Sale 17%(OPEN BOX) Voyager 2 Flow Pump (800 gph) - Sicce
Sicce$59.99$49.99DAMAGED BOX - TESTED - WORKSThe Voyager 2, 3, and 4 Stream Pump Voyager . . . motion of energy! The Voyager 2 is the NEW stream pump for marine aquariums, reef aquariums, and fresh water aquariums, with flow rates up to 800 gallons per hour. Thanks to... -
On Sale 22%
On Sale 22%(OPEN BOX) Universal Pump (1046 / 300) - Eheim
EHEIM$63.95$49.99UNUSED CUSTOMER RETURN EHEIM universal pumps offer a large performance spectrum and a wide variety of uses. They are very reliable equipment offering exceptionally long service life. They can be used inside or out of water. The integrated... -
MarcoRocks Shelf Rock RUBBLE (10 lb) Box - Marco Rock
MarcoRocks$48.9910lb Box of RUBBLE. Sizes range from 1/2" to 6" in length. 8x8x8 Box of SHELF ROCK RUBBLE This is Marco Rocks newest rock offering. It lends itself to that perfect shelf scape that is reminiscent of a multi-tiered reef scene. We recommend... -
On Sale 10%
On Sale 10%(OPEN BOX) Shark ADV 600 Internal Aquarium Filter (158 gph) - Sicce
Sicce$49.99$44.99UNUSED CUSTOMER RETURN The SHARK ADV is an exclusively designed internal filter with a patented magnetic quick uncoupling system (MCS System). The modular design allows the possibility of adding one or more filtering compartments to increase the... -
On Sale 10%
On Sale 10%(OPEN BOX) 48" - 75/90 Gallon Versa-Top Hinged Glass LID (48" x 18") - Aqueon
Aqueon$49.99$44.99UNUSED CUSTOMER RETURN CONTAINS TWO 24" Lids These high-quality glass tops provide an secure aquarium cover designed to support light fixtures, strip lights, and full hoods. The durable glass is crucial for keeping fish safely contained, reducing water... -
On Sale 10%
On Sale 10%(OPEN BOX) GHL Doser & KH Director Faceplate Double Slat - Black - Adaptive Reef
Adaptive Reef$49.99$44.99UNUSED CUSTOMER RETURN Faceplates provide for a cleaner more flush installation to give your cabinet a higher-end, more custom look. They fit a wide variety of aquarium controllers, pump controllers, and auto top-off (ATO) controllers. Some popular... -
On Sale 10%
On Sale 10%(SCRATCH & DENT) Controller Cabinet Neptune DOS Faceplate - Black Double Slat - Adaptive Reef
Adaptive Reef$49.99$44.99Scratch & Dent - Small visible blemish units. The Neptune Systems DŌS Dosing and Fluid Metering System is a popular automatic dosing system that is a perfect fit for the Controller Cabinet when combined with the DŌS faceplate. You’ll... -
On Sale 10%
On Sale 10%(OPEN BOX) Turbelle Nanostream 6015 (10 - 55 Gal) - Tunze
Tunze$49.99$44.99UNUSED - TESTED - WORKS In 2006, TUNZE® developed the “nanostream®” concept. The Turbelle® nanostream® is a compact propeller pump for nano and medium-sized aquariums, and able to convince through its organic ball-shaped... -
On Sale 39%
On Sale 39%(OPEN BOX) 24" Planted+ 24/7 HLC Silver Aquarium LED - Finnex
Finnex$69.99$42.99USED CUSTOMER RETURN When power and style combine The Finnex HLC series is the slimmest series yet solidly built in a eye catching aluminum hood. Featuring a unique four bulb cluster of 8,000K Daylight, Red, Blue, and Green LEDs - the HLC series... -
On Sale 27%
On Sale 27%(EXPIRED) Coral Sprint (175 g - 6.17 oz) SPS/LPS/NPS Coral Food - Fauna Marin
Fauna Marin$54.99$39.99EXPIRED 2/2025 Fauna Marin Coral Sprint is a premium grade marine Bacterioplankton substitute for feeding corals in ULNS systems. Premium grade marine Bacterioplankton substitute for feeding corals in ULNS systems. Dosing... -
On Sale 11%
On Sale 11%(OPEN BOX) SICCE Scuba 150 Watt Contactless App Adjustable Aquarium Fish Tank Heater Smartphone Controlled via NFC
Sicce$44.99$39.99UNUSED CUSTOMER RETURNInnovative 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 Sicce... -
On Sale 29%
On Sale 29%(EXPIRED) 11/25- Phosphate Pro Test Kit (PO4) - 100 Tests - Red Sea
Red Sea$54.99$38.99EXPIRED 11/25 Red Sea’s Phosphate Pro Test Kit is an advanced colorimetric test with comparator, measuring the level of phosphate in your reef aquarium to an exceptionally high accuracy of 0.02ppm PO4. Phosphate Pro Test Kit, when used in... -
On Sale 10%
On Sale 10%(OPEN BOX) SICCE Scuba 50 Watt Contactless App Adjustable Aquarium Fish Tank Heater Smartphone Controlled via NFC
Sicce$39.99$35.99UNUSED CUSTOMER RETURNInnovative 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 Sicce... -
On Sale 10%
On Sale 10%(OPEN BOX) SICCE Scuba 300 Watt Aquarium Fish Tank Heater Preset at 77℉ For Up to 90 Gallons
Sicce$39.99$35.99UNUSED - TESTED - WORKSSCUBA PRESET is a submersible electronic heater pre-set to 77°F / 25°C to ensure a perfect, consistent temperature for your aquarium with a 5 year warranty. They can be installed in all types of aquariums to... -
On Sale 45%
On Sale 45%(EXPIRING 02/25) Compact Lab - Essentials Test Kit (5 Parameters) - Tropic Marin
Tropic Marin$63.64$34.99EXPIRING 02/2025 The test set Tropic Marin® Compact Lab includes all the important tests for prompt and precise determination of water values. The pH value, alkalinity, phosphate level, nitrite and nitrate content as well as the ammonia... -
On Sale 11%
On Sale 11%(OPEN BOX) SICCE Scuba 100 Watt Aquarium Fish Tank Heater Preset at 77℉ For Up to 35 Gallons
Sicce$36.99$32.99UNUSED- TESTED - WORKS SCUBA PRESET is a submersible electronic heater pre-set to 77°F / 25°C to ensure a perfect, consistent temperature for your aquarium with a 5 year warranty. They can be installed in all types of aquariums to... -
On Sale 11%
On Sale 11%(OPEN BOX) LED Gooseneck Clamp/Mount - Kessil
Kessil$35.00$30.99UNUSED _ ALL PIECES PRESENT The Kessil LED Light Pendant Gooseneck Clamp/Mount is a versatile mounting option that allows you to customize the positioning of your Kessil LED Fixtures. Will work with all Kessil lights we sell (A150W, A160W, A360W,... -
On Sale 14%
On Sale 14%(OPEN BOX) VCA FLEX Series - Ultimate Nano Tank Return Line Upgrade Kit - VCA
VCA Vivid Creative$34.99$29.99UNUSED CUSTOMER RETURN Works with Lots of Nano Tanks! Plus, many other aquariums using the included adapters Kit Includes: The Patented Random Flow Generator® Nozzles2 x 1/4in Flex-Series Random Flow Generator® Nozzles New Flex-Series... -
On Sale 25%
On Sale 25%(OPEN BOX) SHARK PRO NANO 320 Internal Aquarium Filter (85 gph) - Sicce
Sicce$39.99$29.99UNUSED CUSTOMER RETURN Having adequate filters for a small size aquarium is crucial to keep the livestock healthy. With the new SHARK PRO NANO we are offering the best compact option with EXTRA flow and MAX filtration capacity for small aquariums. Two... -
On Sale 15%
On Sale 15%Black Slotted Frag Plugs (50 pcs) - Ecotech Marine
Ecotech Marine$35.17$29.99Unique Slotted Design High Quality PH Neutral Ceramic Optimized for Egg Crate racks and rock structures Porous composition promotes strong adhesion using coral glue Legs provide space to easily secure rubber bands for soft coral... -
(DISCONTINUED) Jolly 20 Watt Aquarium Heater - Sicce
Sicce$29.99JOLLY plastic heaters are designed for small freshwater, marine and turtles tanks. Their plastic casing makes them very durable and safe. These heaters can be placed beneath the gravel, making them a good choice for turtle or reptile tanks. JOLLY is... -
MarcoRocks Reef Saver Premium Rock RUBBLE (10 lb) Box - Marco Rock
MarcoRocks$28.9910lb Box of RUBBLE 8x8x8 Box of Marco/Stax Rubble (Mixed) Marco ReefSaver is a natural rock that is harvested on land from an ancient reef system buried when the Florida land mass was formed. Whether you are building a Saltwater fish only, a...