-
On Sale 31%
On Sale 31%(OPEN BOX) Whale 120 Aquarium Canister Filter 10-30 Gal (140 gph) - Sicce
Sicce$129.99$89.99UNUSED CUSTOMER RETURN Whale 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... -
On Sale 11%
On Sale 11%(OPEN BOX) Single 4" Diameter Quiet Filter Sock Holder (2nd Gen) - Fiji Cube
Fiji Cube$94.99$84.99UNUSED CUSTOMER RETURN The Fiji Cube Single 4" Diameter Quiet Filter Sock Holder (2nd Generation) is an essential upgrade for enhancing the mechanical filtration in your aquarium sump or AIO filter box. Designed for quiet operation, this holder... -
On Sale 68%
On Sale 68%(OPEN BOX) FILTRAPOND 1500 Pond Filter with Fountain 396 GPH (Up to 800 Gallon Ponds) - Sicce
Sicce$249.99$79.99UNUSED CUSTOMER RETURN FiltraPond ALL-IN-ONE Pond Filter The FILTRAPOND filters range is designed for easy and practical use in ponds. With a 4 stages filtration system incorporated, this range is ideal to achieve and maintain crystal and healthy water... -
On Sale 14%
On Sale 14%(OPEN BOX) LifeRock Nano Reef Kit - Caribsea
Caribsea$86.95$74.99UNUSED CUSTOMER RETURN LifeRock™ begins as a sunlit piece of Pleistocene era seafloor thriving with living creatures. Over the next 100 millennia and the retreat of the ocean, this ancient piece of seafloor, now well inland, has formed a pure,... -
On Sale 14%
On Sale 14%(OPEN BOX) 72" - 180/210 Gallon Versa-Top Hinged Glass LID (72" x 24") - Aqueon
Aqueon$86.96$74.99UNUSED CUSTOMER RETURN CONTAINS THREE 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,... -
On Sale 50%
On Sale 50%(EXPIRED 6/26) Mardel Coppersafe (1 Gallon) - Fritz Aquatics
Fritz Aquatics$143.99$71.99Chelated Copper Treatment for the Infections of: ICH Flukes (Gyrodactylus) Anchor worms Velvet/Protozoan diseases other external parasites. Coppersafe® solution remains active for over one month in the aquarium. It is a safe, stable,... -
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 10%
On Sale 10%(OPEN BOX) 72" - 125/150 Gallon Versa-Top Hinged Glass LID (72" x 18") - Aqueon
Aqueon$72.21$64.99UNUSED CUSTOMER RETURN CONTAINS THREE 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... -
On Sale 10%
On Sale 10%(OPEN BOX) 200 Watt Titanium Heater Element - Bulk Reef Supply
Bulk Reef Supply$69.99$62.99UNUSED CUSTOMER RETURN We have been on the hunt for a reliable heating element that solves a lot of the issues we currently have with other heaters in the hobby. We have always had issues with heaters that have built-in controllers and segregating the... -
On Sale 11%
On Sale 11%(DAMAGED BOX) 4-Part RCP Complete Reef Care Dosing System - Small (150L - 40 Gal) - Red Sea
Red Sea$69.99$61.99BOX DAMAGED Meet the new 4-part Complete Reef Care, providing hobbyists with more convenience at no extra cost, and ensuring optimal coral growth and vivid colors with only one test per week! Our long-term research has revealed that in most reef... -
On Sale 9%
On Sale 9%(OPEN BOX) SICCE Scuba 200 Watt Contactless App Adjustable Aquarium Fish Tank Heater Smartphone Controlled via NFC
Sicce$64.99$58.99UNUSED CUSTOMER RETURN 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 15%
On Sale 15%(OPEN BOX) eFlux LOOP Accessory Wave Pump 660 GPH (6004) - Current USA
Current USA$67.96$57.77UNUSED 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 5%
On Sale 5%(OPEN BOX) ReefATO+ ATO Sensor (R35622-V4) - Red Sea
Red Sea$59.95$56.99UNUSED CUSTOMER RETURN Fits: Red Sea ReefATO+ -
(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 10%
On Sale 10%(OPEN BOX) Orbit Marine NANO LED Light w/Gooseneck Mount & Dynamic Controller - Current USA
Current USA$59.99$53.99UNUSED CUSTOMER RETURN The perfect light for any Nano aquarium up to 25 gallons! Designed for Saltwater aquariums but it will also work great with freshwater tanks. Producing eye-popping color and amazing color rendition, dynamic... -
On Sale 10%
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 9%
On Sale 9%(OPEN BOX) SICCE Scuba 100 Watt Contactless App Adjustable Aquarium Fish Tank Heater Smartphone Controlled via NFC
Sicce$54.99$49.99UNUSED CUSTOMER RETURN 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 9%
On Sale 9%(OPEN BOX) Syncra Silent Water Pump 0.5 (185 gph) 4 ft. Head - Sicce
Sicce$54.99$49.99UNUSED CUSTOMER RETURN 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... -
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) Apex FMM Leak Detection Probe Low Profile (LD-1) - Neptune Systems
Neptune Systems$49.99$44.99UNUSED CUSTOMER RETURN Plug this probe into your FMM and then place it underneath your carpet near your aquarium. Upon contact with water this probe will communicate to your Apex and alerts or other actions can then take place. Don’t... -
On Sale 10%
On Sale 10%(OPEN BOX) Replacement Impeller for Syncra 3.0 - Sicce
Sicce$49.99$44.99UNUSED CUSTOMER RETURN Sicce Replacement Impeller for Syncra 3.0. -
On Sale 10%
On Sale 10%(OPEN BOX) VCA Flex Series - Ultimate Return Line Upgrade Kit - Dual 1/2 Flex-Series RFG - Vivid Creative
VCA Vivid Creative$49.99$44.99UNUSED 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 1/2in Flex-Series Random Flow... -
On Sale 10%
On Sale 10%(OPEN BOX) Voyager Nano 2000 (530 gph) - Sicce
Sicce$49.99$44.99UNUSED CUSTOMER RETURN A stream pump with sleek, compact design to ensure minimum size in a pump that simulates wave motion with ultra low energy consumption and exceptional performance. VOYAGER NANO can also be used in freshwater aquariums, increasing... -
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 11%
On Sale 11%(OPEN BOX) XW Orbit LED Adjustable Tank Mount Bracket (4194) - Current USA
Current USA$44.95$39.99UNUSED CUSTOMER RETURN The XW Orbit® LED Adjustable Tank Mount Bracket provides a low profile, minimalistic solution to mounting your LED light over your aquarium. Easy to install, it requires no drilling or cutting into your... -
On Sale 50%
On Sale 50%(EXPIRED 12/25) Algae Control Pro Multi Test Kit Nitrate/Phosphate - NO3/PO4 - Red Sea
Red Sea$79.99$39.99EXPIRED Red Sea’s Algae Control Pro Kit includes high accuracy colorimetric comparator tests for the exceptionally high accuracy measurement of nitrate and phosphate. The nitrate & phosphate tests are essential for the accurate dosing of... -
On Sale 11%
On Sale 11%(OPEN BOX) AQUA FILTRA 10 Hang on Back Aquarium Filter - Sicce
Sicce$44.99$39.99UNUSED CUSTOMER RETURN Sicce AQUA FILTRA 10 Hang-On-Back Filter Professional Grade Filtration for Your Nano Aquarium Discover the perfect fusion of compact design and powerful performance with the Sicce AQUA FILTRA 10. This premium hang-on-back filter... -
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... -
(OPEN BOX) SICCE Scuba 250 Watt Aquarium Fish Tank Heater Preset at 77℉ For Up to 75 Gallons
Sicce$39.99BOX DAMAGED - UNIT UNTOUCHEDSCUBA 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... -
STAX Porous Dry Rock RUBBLE (10 lb) Box - Two Little Fishies
Two Little Fishies$39.9910lb Box of RUBBLE. Sizes range from 1/4" to 4" in length. 8x8x8 Box of STAX ROCK RUBBLE Build striking, unique aquascapes in your aquarium with Two Little Fishies STAX Aquascaping Rocks. STAX are flat, porous, oolitic limestone shapes,... -
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) KH/Alkalinity Pro-High Accuracy Titration Test kit (75 tests) - Red Sea
Red Sea$41.99$37.99NO BOXRed Sea’s KH/Alkalinity Pro Test Kit is an advanced titration test, measuring the level of buffers in your reef aquarium to an exceptionally high accuracy of 0.05 meq/l (0.14 dKH).Red Sea’s Alkalinity Pro test kit enables the accurate... -
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 9%
On Sale 9%(OPEN BOX) VCA Flex Series 3/4" Random Flow Generator Return Line Upgrade Kit – Vivid Creative
VCA Vivid Creative$32.95$29.99UNUSED CUSTOMER RETURN Red Sea REEFER G2 Recommended for Gen 2 dual outlet (on either side of the overflow) models for the Red Sea Reefer 525 and above Waterbox Aquariums Waterbox aquarium with DN20 stock return nozzles Plus, many other aquariums... -
On Sale 12%
On Sale 12%(OPEN BOX) NP Bacto Pellets Bio Pellets (500 ml) - Tropic Marin
Tropic Marin$33.99$29.99POPPED LIDOrganic filter medium for fluidized bed reactors for effective biological nitrate and phosphate reduction with a quick-starting, continuous action. Tropic Marin® NP-Bacto-Pellets consist of a mixture of natural biopolymers, which... -
On Sale 12%
On Sale 12%(OPEN BOX) Arag-Alive Special Grade Reef Sand (20 lb) 1.0 - 2.0 mm - Caribsea
Caribsea$33.99$29.99CUT BAG - WATER LEAKED - SAND FINE You can now bring the world’s most exotic reefs into your home with CaribSea’s Arag-Alive!™ substrates. Eight environmentally accurate ecoscapes, developed through CaribSea’s cooperation with... -
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...