Neptune AquaBus Cable (M/F)

The Apex Controllers from Neptune Systems are modular systems that allow you to connect many modules together in either a “daisy-chain” or star topology method. Use this cable to connect the Apex controller, modules, and Energy Bars together. Please...

Fritz Alkalinity Test Kit

Refractometer for Reading Salinity with Calibration Fluid

Fritz GH Test Kit (Freshwater)

Fritz Nitrite Test Kit

Fritz-Zyme TurboStart 900 contains proven strains of effective, live nitrifying bacteria in a highly concentrated form. It rapidly cycles aquariums in five days or less, allowing for safe, immediate addition of livestock. TurboStart 900 reduces fish loss...

Hanna Copper Checker High Range

Copper High Range Colorimeter HI702 Hanna Checker - The HI702 provides a digital reading of copper levels in fresh or saltwater aquariums, using a simple one-button operation.

Hanna Phosphate Reagent

Hanna Checker Phosphate Reagents - 25 Tests. Phosphate reagent refills for the easy to use, handheld Hanna Low Range Phosphate Checker HI713. Reagents for 25 tests.

Hanna Phosphate Checker

Hanna Phosphate Low Range Colorimeter HI713 - Fresh & Marine Water is a digital tool that provides accurate and easy-to-read results for testing phosphate levels. It features a simple three-step operation: zeroing with the water sample, adding the...

Seachem Ammonia Alert

Innovative color-coded monitoring device for continuous detection of toxic ammonia. Seachem Ammonia Alert Device alerts you to high levels of free ammonia without need for a test kit. The sensor changes color from yellow to green to blue when ammonia...

Tunze Osmolator 3 Auto Top Off

Straightforward and safe water level controller for fresh and sea water with optical control sensor and independent thermal safety sensor. A constant water level keeps the salt concentration constant in seawater aquariums. Incl. Turbelle® High Jet 5030...

AutoAqua Smart Skimmer Security

Smart Skimmer Security by AutoAqua is designed to prevent skimmer overflows with advanced protection features. It includes a plug-and-play installation that automatically restarts the skimmer after cup cleaning, along with an audible and visual alarm for...

API Ammonia Test Strips (25 ct)

Ammonia Aquarium Test Strips - Measures ammonia levels from 0 to 6 ppm in fresh or saltwater in one easy step. Just dip & read! 25 ct.

Salifert Flatworm eXit

Flatworm eXit is a treatment for flatworms that is safe for fish and invertebrates but can release toxic body juices from flatworms when they die. It requires siphoning out flatworms before treatment and using activated carbon to absorb toxins. Care must...

Aquatic Life Barrel Buddie

Ensure the best water quality for your reef tank with our reverse osmosis (RO) and deionization (DI) systems, designed to remove harmful contaminants like chlorine, chloramines, nitrates, and phosphates from your tap water. Producing zero total dissolved...

AutoAqua Smart Temp Security

AutoAqua Smart Temp Security - Simple Security for your Heaters or Chillers! Pre-Set Temperature Range - 72°F to 84°F. Using a tiny temperature sensor, this system keeps your aquarium safe from temperature dips or spikes. The plug & play design requires...

Salifert Alkalinity Test Kit

Salifert KH/Alkalinity Test Kit measures the levels of alkalinity and carbonate hardness in aquariums, ensuring stable pH levels between 8.1 to 8.4, with a sensitivity to detect small changes in alkalinity measures. Suitable for marine water, freshwater,...

Hanna Copper Reagent

Hanna HI702-25 includes 25 pre-measured reagent packets that can be used with the HI702 High Range Copper Checker. Each package has been designed for a single use and allows for a perfect reagent measurement that will not become contaminated. The...

Salifert Phosphate Test Kit

Salifert Phosphate test kit detects phosphate level (< 5 seconds). Measures 0.01 - 1 mg/L (low range), 0.02 - 2 mg/L (medium range). For 60 tests. Suitable for marine, fresh, and garden pond water. Warning: PO4-1 is irritating. Instructions included.

Hanna Phosphate ULR Checker

The HI774 Ultra Low Range Phosphate Checker® is a cost-effective way to measure phosphate in marine systems, including reef tanks. Excessive phosphate levels can prevent calcification, skeletal formation, and growth of many coral species. The HI774...

Salifert Nitrate Test Kit

Nitrate Profi-Test. This test kit is designed to detect nitrate levels in aquariums, particularly beneficial for reef tanks where low nitrate levels are essential. The Salifert Test Kit provides accurate results in less than 3 minutes without...

Salifert Nitrite Test Kit

Salifert Nitrite Profi-Test: In a properly cycled aquarium, nitrite is converted to nitrate and then, if there are areas deprived of oxygen such as in live rock and other filter materials, this nitrate is converted back to nitrite and then transformed...

Salifert Ammonia Test Kit

Salifert Ammonia Test Kit measures total ammonia and ammonium quickly and accurately; sufficient for up to 50 tests with a detection limit of 0.5 ppm total ammonia.

Hanna Nitrate HR Reagent

HI782-25 Nitrate HR Checker Reagents - Hanna, Reagent refill for Nitrate High Range Colorimeter HI782 - Marine Water as well as the Marine Master HI97105 Multiparameter Photometer. Enough reagent for 25 tests. SKU: 232508.

Hanna Nitrate HR Checker

The HI782 Nitrate Checker HC by Hanna Instruments is a simple and accurate handheld colorimeter that uses the zinc reduction method to determine nitrate concentration in marine applications. With a digital read out, there is no more struggling to...

Salifert pH Test Kit

Salifert pH Profi-TestThe pH value in a marine tank has a major impact on the growth of corals and calcareous algae and on many biological processes. The pH should not be allowed to fluctuate more than approx. 0.2 units during any 24 hour period and...

Hanna Alkalinity (dKH) Reagent

HI772-26 Alkalinity Checker Reagents - Hanna. Reagent refill for Alkalinity Colorimeter HI772 or HI755 Hanna Checker HC Marine Water, as well as the Marine Master HI97105 Multiparameter Photometer. Enough reagent for 25 tests. Aquarium Type: Saltwater.

Triton ICP-OES Testing Kit

TRITON ICP-OES Laboratory Seawater Analysis. Comprehensive testing for Macro and Trace Elements. Each TRITON LAB ICP water analysis is an accurate snapshot of the water quality in your system.

Hanna Alkalinity (dKH) Checker

Hanna Alkalinity DKH Colorimeter HI772 Checker - Marine Water. This is a reliable tool that provides accurate DKH values for aquarium enthusiasts, featuring an easy-to-read LCD display and the ability to purchase replacement reagents. Ideal for anyone...

Hanna Calcium Reagent

HI758-26 Calcium Checker Reagents for Marine Water, enough reagent for 26 tests, includes individual packets for easy use with the handheld Hanna Calcium Checker and the Marine Master HI97105 Multiparameter Photometer.

Hanna Calcium Checker

Hanna Checker Calcium Colorimeter HI758 - Accurately check your reef tanks calcium level with the Hanna HI758 Calcium Checker. Redesigned with new 100 µL Pipette, it bridges the gap between simple chemical test kits and professional instrumentation...

Refractometer

Refractometers are instruments used for measuring the concentration of solutes in liquids, commonly found in aquarium supplies for checking salinity levels.

Crystal ATO Reservoir

Crystal ATO 5 Gallon Reservoir is a crystal clear acrylic container designed to hold top off water for aquariums. It features a removable lid to prevent evaporation and a large opening for easy refilling. Contains two 0.25” OD holes for plumbing or wires...

Neptune 1" Flow Sensor FS100

1" Flow Sensor for the Fluid Metering Module from Neptune. The FS-100 will work with flow rates from 150-1500 gph, and will connect to any standard 1" Slip PVC. Usually used with a return pump, this flow sensor can be placed in line with the flow on any...

Neptune VDM LED & Pumps Control Module

The Neptune Systems Apex Variable Speed/Dimming Module offers control over variable speed pumps and LED lighting with features like four channels of 0-10V control for pumps, independent control profiles, and advanced LED dimming capabilities. It is...

Neptune PM2 Salinity Module

PM2 Salinity Module for real-time monitoring of salinity in reef aquariums, compatible with all Apex systems, includes features like multiple measurement ranges, digital inputs, and data logging support.

Neptune SKY Hanging Kit

NEPTUNE SKY - Hanging Kit

Neptune I/O Breakout Box

Neptune Systems I/O Breakout Box for Apex Controller, enables connection of up to six external switches for enhanced monitoring and control of your aquarium.

Neptune OS-1-M Optical Level Sensor V2 W/ Mount

The OS-1-M Optical Level Sensor V2 is equipped with a magnetic mount and is designed for reliable long-term performance. It connects directly to the FMM (Flexible Module Management) system, allowing for effective monitoring of water levels in sumps,...

Neptune 2" Flow Sensor FS200

2" Flow Sensor for the Fluid Metering Module from Neptune. The FS-200 will work with flow rates from 300-3000 gph, and will connect to any standard 2" Slip PVC. Usually used with a return pump, this flow sensor can be placed in line with the flow on any...

Neptune Double Junction ORP Probe

Neptune Double Junction probes will outlast most other traditional lab grade probes letting you go longer between calibrations, and having to purchase and replace probes less frequently. The Double Junction isolates the reference gel and probe from...

Neptune Conductivity / Salinity Probe

Lab Grade Conductivity/Salinity Probe - Start measuring salinity in your reef. Replace an old probe or add salinity monitoring to your Apex Aquarium Controller. Real-time salinity monitoring alerts you to potential issues. Includes one Neptune Systems...

Neptune Temperature Probe

Neptune Apex Temperature Probe

Neptune MOS Magnetic Optical Sensor

The Neptune MOS Magnetic Optical Sensor offers modern and compact water level monitoring with precise control. It features a built-in magnetic mount, is silicone-encased for waterproofing, and fits into tight spaces. The design ensures it prevents water...

Neptune FMK Flow Monitoring Kit

FMK Flow Monitoring Kit by Bulk Reef Supply unlocks a world of control for any Apex model. The kit includes a 1" FS-100 Flow Sensor, two 1/2" FS-50 Flow Sensors, a Fluid Monitoring Module (FMM), and various adapters. It's designed for monitoring flow...

Neptune DDR (DOS Dual Reservoir)

An elegant and highly refined solution to two-part/liquid storage, the DOS Dual Reservoir's advanced features are Apex Ready!

Neptune COR

Take complete control of your aquarium with Neptune Systems Apex Aquarium Controllers. Protect your tank with real-time monitoring, automated dosing, leak detection, and fail-safe features that keep your fish and corals safe, no matter where you are.

Neptune Probe Calibration Pack

Neptune Systems Probe Calibration Kit - ph 7.0, ph 10.0, & Salinity 53000uS. The Neptune Systems Probe Calibration Kit includes everything you need to calibrate your pH probe and salinity probe for reef tank conditions. The kit features single-use...

Neptune 36W 24VDC Power Supply

The Neptune FMM & DOS power supply is 24VDC, 36W and can be used with the FMM so that you can attach the powered accessories above like the PMUP or the Solenoid Valve. It also is compatible with the Neptune DOS Fluid Metering System. This power supply is...

Neptune LD-1 Low Profile Leak Detection Probe

LD-1 Low Profile Leak Detection Probe - Out of Stock. Compatible with Neptune FMM, low profile for placing under carpet or in tight spaces. Notifies when there is a leak to prevent disaster. Perfect for applications like water on floor warnings and...

Neptune AquaBus Cable (M/M)

The Apex Controllers from Neptune Systems are modular systems that allow you to connect many modules together in either a “daisy-chain” or star topology method. Use this cable to connect the Apex controller, modules, and Energy Bars together. Please...

Neptune A3 Apex Pro

Neptune Systems A3 Apex Pro Aquarium Controller System -- The most complete experience of monitoring and control for the discerning aquarist. Fully equipped A3 Apex Pro base unit with features including WiFi and Ethernet compatibility, 4 FMM Ports, and...

XP Aqua RODI Flood Guardian

XpAqua Duetto V2 Dual-Sensor Auto Top Off (ATO)

Hanna Salinity Calibration Solution

25-Pack HI70024P 35ppt Salinity Calibration Sachet - NIST Traceable Salinity Calibration, single-use sachets made of light-blocking foil that prevents oxidation, stable for up to 5 years in its packaging, accurate and reliable for conductivity probes or...