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Products (192)
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Apex DOS 4 Meter Tubing for Dosing System - Neptune Systems
Neptune Systems$9.99The DŌS comes standard with 4m of tubing. Many customers have been asking to purchase more tubing. We now have an available accessory — a 16-meter and 4- meter length of the tubing... -
Apex 1LINK Power Cable Male to Male - 10’ - Neptune Systems
Neptune Systems$29.994-pin male to male cable many of you have been waiting for. It is ten feet long. This cable allows you to connect your DŌS to the 1LINK thereby eliminating the need for the DŌS to be connected to a... -
Apex COR 15 - Controllable Flow/Return Pump - Neptune Systems
Neptune Systems$399.99COR 15 - This submersible pump (that can also be run externally) now has its own external control box but still only requires you connect it up one place - 1Link. With less than 50w of power it is... -
Apex Conductivity/Salinity Calibration Solution 53000 uS - Neptune Systems
Neptune Systems$5.99Use this calibration solution to calibrate your Conductivity Probe and PM2 for salinity monitoring. -
Apex 1LINK Extension Cable - 10’ Male to Female - Neptune Systems
Neptune Systems$34.991LINK is the marrying of the Aquabus communication standard, along with the power wires to drive higher power devices, all in one single cable. One of the benefits of this is to avoid the need... -
Apex 30' Aquabus EXTENSION Cable ( M/F ) - Neptune Systems
Neptune Systems$39.99AQUABUS EXTENSION CABLE (M/F)-VARIOUS LENGTHS The Apex is a modular system that allows you to connect many modules together in either a “daisy-chain” or star topology method. Use this... -
Apex COR 20 - Controllable Flow/Return Pump - Neptune Systems
Neptune Systems$449.99COR 20 - This pump is identical in physical size to the COR 15 but with the addition of an External power supply can push over 2000gph! All that flow for less than 100w of power and it is nearly... -
(PS-24-100) COR Pump Replacement Power Supply - Neptune Systems
Neptune Systems$54.95OEM 100W power supply for the COR-20 Return Pump -
Apex PM2 - Salinity, Temperature, I/O Expansion Module - Neptune Systems
Neptune Systems$119.99Maintaining consistent salinity in your aquarium is key to the well being of every organism inside it. And, as busy as we sometimes are, we don’t even realize our parameters are out of whack... -
Apex PM1 - pH or ORP, Temperature, I/O Expansion Module - Neptune Systems
Neptune Systems$119.99The PM1 probe module is just what you need if you want to monitor pH or ORP in your tank. And, there is an added bonus, you get an extra temperature port as well as six I/O switch inputs for use on... -
Apex FMM Flow Sensor – 1″ (FS-100) w/Unions - Neptune Systems
Neptune Systems$79.99Usually used with a return pump, this flow sensor can be placed in line with the flow on any pipe, connected to the FMM, and communicate to your Apex the flow rate of water through that pipe. The... -
Apex 1LINK DIY DC24 to Bare Wire Cable - 10’ - Neptune Systems
Neptune Systems$29.99This cable connects to the 24VDC accessory connections on the 1LINK. This cable has two bare (tinned) wires on the other end so you could connect it up to a 24VDC device of your choosing so long as... -
Apex FMM Leak Detection Probe Solid Surface (LD-2) - Neptune Systems
Neptune Systems$49.99Plug this probe into your FMM and then place it on any surface where you want to detect stray water. Upon contact with water this probe will communicate to your Apex and alerts or other actions... -
Apex ATK V2 Automatic Top-Off Kit ATO (ATK) - Neptune Systems
Neptune Systems$269.99The ATK (Automatic Top-off Kit) is a simple, standalone, and complete solution for replacing water lost to evaporation. The new aquarium hobbyist has many challenges, but none is more annoying... -
Apex FMM Flow Sensor – 1/4″ (FS-25) RODI - Neptune Systems
Neptune Systems$29.99Usually used with aquarium accessories like RODI inputs, calcium reactor feed lines etc., this flow sensor can be placed in line with the flow on 1/4″ tubing, connected to the FMM,... -
Kessil to Neptune Apex Control Cable - Kessil
Kessil$25.00The Kessil Apex Controller Cable connects the Kessil A360 or A160 LED Lights to the Neptune Apex Controller, and to Apex Jr. & Apex Lite Controllers with the VDM Module. 6 feet long. -
Apex FMM Leak Detection Probe Low Profile (LD-1) - Neptune Systems
Neptune Systems$49.99Plug 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... -
PMUP (T) V2 Practical Multipurpose Utility Pump w/Power Supply - Neptune Systems
Neptune Systems$79.99The PMUP is a multi-purpose pump that can be used for many different tasks on your aquarium. This listing includes a Power Supply. Automatic Top-Off (ATO) Carbon reactors GFO... -
Apex FMM Flow Sensor – 1/2″ (FS-50) w/Unions - Neptune Systems
Neptune Systems$49.99Usually used with aquarium accessories like reactors, carbon/GFO filters, etc., this flow sensor can be placed in line with the flow on any pipe, connected to the FMM, and communicate to your Apex... -
Accessory Power Supply for DC24V Devices GRO, PMUP, SV1 (PS-DC24) - Neptune Systems
Neptune Systems$29.99110V power supply for our DC24 accessories like the PMUP, GRO Refugium LED and Solenoid Valve. You can use these when there are no available DC24 outputs on your EB832 or 1LINK but do have... -
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... -
Apex TRIDENT (Alk, Cal, Mag) Automatic Water Tester (Without Reagents) - Neptune Systems
Neptune Systems$649.99(Reagents SOLD SEPARATELY) The Trident is an automated testing system that regularly tests alkalinity, calcium, and magnesium in your saltwater aquarium — and then communicates this... -
Apex TRIDENT (Alk, Cal, Mag) Automatic Water Tester (With 6 Month Reagents) - Neptune Systems
Neptune Systems$759.99(Includes 6 Months of Reagents) The Trident is an automated testing system that regularly tests alkalinity, calcium, and magnesium in your saltwater aquarium — and then communicates this... -
Apex TRIDENT (Alk, Cal, Mag) Automatic Water Tester (With 2 Month Reagents) - Neptune Systems
Neptune Systems$699.99(Includes 2 Month Reagents) The Trident is an automated testing system that regularly tests alkalinity, calcium, and magnesium in your saltwater aquarium — and then communicates this... -
Mini Neptune DOS Controller Board WHITE - Adaptive Reef
Adaptive Reef$114.99Adaptive Reef Boards Purpose-Built for the Neptune Systems DŌS Easily mount two DŌS pumps 15" x 15" size Includes hinges for easy access Available in Black or White The Neptune Systems DŌS... -
Mini Neptune DOS Controller Board BLACK - Adaptive Reef
Adaptive Reef$114.99Adaptive Reef Boards Purpose-Built for the Neptune Systems DŌS Easily mount two DŌS pumps 15" x 15" size Includes hinges for easy access Available in Black or White The Neptune Systems DŌS... -
Mini Neptune Apex Controller Board BLACK - Adaptive Reef
Adaptive Reef$114.99Purpose-Built for the Neptune Systems Apex Safely mount electrical equipment 15" x 15" size Pre-drilled holes Includes hinges for easy access Available in Black or White Introducing the... -
Mini Neptune Apex Controller Board WHITE - Adaptive Reef
Adaptive Reef$114.99Purpose-Built for the Neptune Systems Apex Safely mount electrical equipment 15" x 15" size Pre-drilled holes Includes hinges for easy access Available in Black or White Introducing the... -
Black Neptune Systems Custom Controller Board (V2) - Adaptive Reef
Adaptive Reef$379.99Elevate Your Aquarium's Tech Setup! Halo-Lit & Face-Lit 3D Logo for a High-Tech Look Full RGB Lighting Customization to Match Your Setup Ample Space for Equipment with Easy Access Designed... -
White Neptune Systems Custom Controller Board (V2) - Adaptive Reef
Adaptive Reef$379.99Elevate Your Aquarium's Tech Setup! Halo-Lit & Face-Lit 3D Logo for a High-Tech Look Full RGB Lighting Customization to Match Your Setup Ample Space for Equipment with Easy Access Designed... -
0-10v Output Adapter Neptune Apex for Frozen Fish Food Feeder - inD aquatics
inD aquatics$20.99Expand on your control of the aF4 with our 0-10v Dual Interface Cable. Designed specifically for Neptune Apex or the GHL Profilux, this cable allows for precise control of feeding times and allows... -
SS-FIVE - 5 Gallon Auto Top Off Container (w/ Neptune LLS Port) - Bashsea
Bashsea$149.00ATO - A feature rich, multi-purpose reservoir. Bashsea has packed the ATO full of versatile features so you can use it the way you want to use it. Now With a Port that fits the Neptune... -
SS-TEN - 10 Gallon Auto Top Off Container (w/ Neptune LLS Port) - Bashsea
Bashsea$199.00ATO - A feature rich, multi-purpose reservoir. Bashsea has packed the ATO full of versatile features so you can use it the way you want to use it. Now With a Port that fits the Neptune... -
Titanium ATO - 10 Gallon Auto Top Off (w/ Built-In LED & Neptune LLS Port) - Trigger Systems
Trigger Systems$314.99Trigger Systems Titanium ATOs are one of the best looking ATOs on the market. They match perfectly to the Titanium line of sumps. These ATOs have built in LEDs along with a LED remote and a... -
Titanium ATO - 5 Gallon Auto Top Off (w/ Built-In LED & Neptune LLS Port) - Trigger Systems
Trigger Systems$249.99Trigger Systems Titanium ATOs are one of the best looking ATOs on the market. They match perfectly to the Titanium line of sumps. These ATOs have built in LEDs along with a LED remote and a... -
4 PACK - 1/4" x 1/8" nptf Female Adapter BLACK (Apex DOS Fitting) - Mur lok
GA Murdock$19.99Neptune DOS NOT Included, 4 Fittings ONLY Fitting used to connect the APEX dos to standard 1/4" RODI tubing. Makes the Neptune Systems DOS Pump a push fit for easy and secure tubing... -
4 PACK - 1/4" x 1/8" nptf Female Adapter WHITE (Apex DOS Fitting) - Mur lok
GA Murdock$19.99Neptune DOS NOT Included, 4 Fittings ONLY Fitting used to connect the APEX dos to standard 1/4" RODI tubing. Makes the Neptune Systems DOS Pump a push fit for easy and secure tubing... -
Ecotech Marine Custom WHITE Controller Board - Adaptive Reef
Adaptive Reef$379.99Take your equipment organization to the next level with custom controller boards from Adaptive Reef. The Neptune Systems Controller Board is a modular wire management system with cutouts and spacing... -
Ecotech Marine Custom BLACK Controller Board - Adaptive Reef
Adaptive Reef$379.99Take your equipment organization to the next level with custom controller boards from Adaptive Reef. The Neptune Systems Controller Board is a modular wire management system with cutouts and spacing... -
APEX Display Mount - ORANGE - Vivid Creative
VCA Vivid Creative$14.99Mount your Neptune APEX display in style. with this new APEX Display Holder. Simple Installation Features a simple mounting slot for super easy to mounting and aligning. This kit includes the mount...
Featured Products
RO/DI Flood Guardian - RODI Auto Shut Off Solinoid - AutoAqua
AutoAqua
$94.99
Stop the Floods. Start the Convenience.
Making RO or RO/DI water for your aquarium is a time-consuming necessity, but forgetting to turn it off shouldn't cost you a flooded floor. The AutoAqua Smart...
Granular Activated Clean Carbon (3.5 lbs, 1600 grams) - ESV
ESV
$39.99
Achieve crystal-clear water and a healthier aquatic environment with ESV Granular Activated Carbon (GAC). Recognized by professional reef keepers as one of the highest-quality chemical filtration...
Kalkwasser Powder Calcium Hydroxide (14 oz, 400 grams) - ESV
ESV
$14.99
Maintain a thriving reef ecosystem with the purity of ESV Kalkwasser. A cornerstone of marine aquarium care for decades, Calcium Hydroxide is a proven, economical method for maintaining both calcium...
4-Head Dosing Pump - Simplicity
Simplicity
$149.95
The Simplicity Dosing Pump is an accurate, effective, and affordable liquid dosing solution. The four dosing heads offer high-precision liquid dosing combined with easy-to-use integrated controls...
Marine Grazing Pellets 8mm (2.82 oz) - Vialtis
Vitalis
$20.99
Vitalis Marine Grazing Pellets (8mm) – 80g
Fuel the natural foraging instincts of your saltwater fish with Vitalis Marine Grazing Pellets. These high-quality, 8mm pellets are specifically formulated...
Marine Grazing Pellet Station - Vitalis
Vitalis
$8.99
Vitalis Universal Grazing Station – Interactive Feeding System
Enhance your aquarium’s feeding experience with the Vitalis Universal Grazing Station. Designed by the experts at Vitalis, this...
BioSpace Reactor 8-2 (8" x 21") Up to 500 Gallons - Bashsea
Bashsea
$599.00
Elevate your aquarium’s ecosystem with the Bashsea BioSpace Reactor, the most effective biological filter currently available on the market. Engineered for the serious hobbyist, this reactor utilizes...
BioSpace Reactor 6-2 (6" x 21") Up to 225 Gallons - Bashsea
Bashsea
$399.00
Elevate your aquarium’s ecosystem with the Bashsea BioSpace Reactor, the most effective biological filter currently available on the market. Engineered for the serious hobbyist, this reactor utilizes...
BioSpace Reactor 4-2 (4" x 21") Up to 110 Gallons - Bashsea
Bashsea
$219.00
Elevate your aquarium’s ecosystem with the Bashsea BioSpace Reactor, the most effective biological filter currently available on the market. Engineered for the serious hobbyist, this reactor utilizes...
4" NOSOK Filter Sock No Sock Replacement Silencer Cup - VCA
VCA Vivid Creative
$44.95
Silence Your Sump and Simplify Your Maintenance Routine
Tired of the constant splashing and "gurgling" sounds coming from your filter socks? The VCA No-Sock 4-Inch Silencer is the ultimate solution...
84 Gallon Peninsula Drop Off Aquarium w/ Black Stand - Full Package - Fiji Cube
Fiji Cube
$4,499.99
Dive into something different with the Fiji Cube 84 Gallon Peninsula Internal Overflow Drop Off Rimless Aquarium – where creativity meets the coast! Designed for reef lovers and aquascaping...
84 Gallon Peninsula Drop Off Aquarium w/ Black Stand - Fiji Cube
Fiji Cube
$3,999.99
Dive into something different with the Fiji Cube 84 Gallon Peninsula Internal Overflow Drop Off Rimless Aquarium – where creativity meets the coast! Designed for reef lovers and aquascaping...
Small-In-One Nomad Portable Traveling Aquarium (0.5 Gallon) - PNW Custom
PNW Custom
$349.99
0.5 Gallon Fully Sealed Traveling Aquarium
The world’s first fully sealed traveling aquarium.
The Small-In-One Nomad is a compact 0.5-gallon aquarium designed for safely transporting and displaying...
ION-B ALK/pH+ Liquid (5000 mL) Base 2 Part - NYOS
NYOS
$59.99
Balanced Alkalinity Support for Modern Reef Tanks
Pre-Mixed, Ready-to-use Solution
Increases Alkalinity and Stabilizes pH
Also Contains Sulfate, Bromine and Fluorine for Ion...
ION-B CA/MG+ Liquid (5000 mL) Base 2 Part - NYOS
NYOS
$59.99
Balanced Calcium and Magnesium Support for Modern Reef Tanks
Pre-Mixed, Ready-to-use Solution
Increases Calcium and Magnesium
Also Contains Strontium, Potassium, and Boron for Ion...
MEGA Filtra 950 SDC Aquarium Canister Filter Up to 250 Gal (568 gph) - Sicce
Sicce
$499.99
Experience the next generation of aquarium filtration with the Sicce Mega Filtra Series. Entirely designed and manufactured in Italy, these premium canister filters combine heavy-duty
MEGA Filtra 900 Aquarium Canister Filter Up to 240 Gal (410 gph) - Sicce
Sicce
$349.99
Experience the next generation of aquarium filtration with the Sicce Mega Filtra Series. Entirely designed and manufactured in Italy, these premium canister filters combine heavy
MEGA Filtra 650 Aquarium Canister Filter Up to 170 Gal (380 gph) - Sicce
Sicce
$299.99
Experience the next generation of aquarium filtration with the Sicce Mega Filtra Series. Entirely designed and manufactured in Italy, these premium canister filters combine heavy
LRS Chunky Predator Frenzy (7 oz Pack) - Superior Nutrition All-in-One Frozen Food for Marine Fish, Corals & Invertebrates
LRS
$21.99
LRS "Chunky" is the perfect food for hobbyists with large predatory fish such as triggers, puffers, and eels. This blend offers a convenient way to feed your fish fresh, diverse, and high-quality...