Hanna Marine 981520 Monitor  Marine Monitor pH, Marine Salinity and Temperature Testing and monitoring salinity in saltwater aquariums is an...

Please note: CONTROL 4 ONLY - Nothing else is included.   Achieve Ultimate Aquarium Control with the HYDROS Control 4...

Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode...

SeaTest Ca - Saltwater Calcium is one of the most important elements in a marine aquarium because many corals, other...

SeaTest KH -  Saltwater Bicarbonates (KH) buffer the water against pH changes. But via biological processes in the water the...

Stop Guessing. Start Growing! Your monthly path to precision. We combine laboratory testing with a personalized blend of core trace...

The API KH TEST KIT tests fresh or saltwater aquariums for carbonate hardness (KH), and helps monitor water quality and...

Red Sea MCP Magnesium Test - 75 tests Accurate measurement of Magnesium in marine aquariums Mg   Red Sea’s user-friendly...

Red Sea MCP Calcium Test - 75 tests User-friendly titration test provides a quick and reliable measurement of calcium in...

Red Sea MCP Ammonia Test - 100 tests Accurate measurement of ammonia in marine aquariums NH3 | NH4   Red...

The HI740271 is a replacement filter holder with Luer lock (1 pc.) for use with the HI781 Low Range Marine...

Hanna 10 mL syringe with Luer lock

Alkalinity Pro Test Kit Advanced alkalinity titration test KH       Red Sea’s KH/Alkalinity Pro Test Kit is an...

Hydrps Diaphragm Water Pump The HYDROS Diaphragm Pump is a small 12V Drive Port accessory that uses positive external displacement...

Reef Kinetics Reefbot Replacement Tubes 2 Meters Silicon Tubes (Set of 3)

Never before offered in the aquarium industry the LLS Sensors allow for the measurement of water depth in inches or...

CoralVue HYDROS CO2 Solenoid Valve The HYDROS DC CO2 Solenoid Valve is the ideal solution for controlling the CO2 flow...

The Copper High Range Checker HC Calibration Check Set - HI702-11 provides a simple solution to validating the Copper High...

Neptune Systems LDK - Leak Detection Kit Detects leaks on contact Instantly alerts you via your mobile device Monitor for...

Neptune Systems Aquabus Cable - 30' M/M AQUABUS CABLES WHAT ARE THEY? Aquabus is the communication link between your Apex...

Aquabus 30′ Extension Cable This is a thirty foot Male/Female Aquabus cable that is used as an extension cable to...

SWS & WiFi The seneye web server with WiFi module removes the need for a pc altogether and allows wireless...

This is the perfect fluid for the storage of any pH or ORP/REDOX Electrode. American Marine Probe Storage Fluid will...

Lunar LED String – 5 LEDs Use this string of LED in combination with your Lunar Simulation Module When you...

6' AquaBus Cable (M/M)

15' Male/Female AquaBus cable. Extension Aquabus cable used to lengthen AquaBus cables so that modules which are more than 15'...

Same as most digital meters, this meter apply a work theory which is measuring the liquid conductance to determine its...

Milwaukee's economical testers are easy-to-use and low cost instruments to measure quick and reliable pH values. Range 0.0 - 14.0...

pH 55 Specifications Range -2.0 - 16.0 pH Resolution 0.1 pH Accuracy  0.1 pH ATC Automatic Calibration 2 Points -...

The ATI ICP-OES Pro kit is identical to the original ATI ICP-OES test.   The ATI ICP-OES Pro Lab Water Analysis is...

The ATI ICP-MS Ultimate Lab Water Analysis is a laboratory water analysis of 50 parameters in a reef tank that...

SeaTest Mg - Saltwater Magnesium is the third most important element in the composition of seawater. It is essential to...

SeaTest PO4 - Freshwater and Saltwater Phosphate is an end product from the degradation of organic substances such as uneaten...

SeaTest NO3 - Freshwater and Saltwater Uneaten food, fish waste and other organic nitrogen containing compounds are broken down by...

SeaTest pH - Freshwater and Saltwater The pH value is one of the key values of an aquarium or pond....

Say Goodbye to Manually Testing for Calcium, Alkalinity, or Magnesium in your Reef!   The Trident is an automated testing...

NEW EXPIRES 12/2025  - SAVE 80%   Nitrate Pro Test Kit Exceptionally high accuracy colorimetric comparator tests for Nitrate measurement...

M-Rack: One Magnet, Endless Possibilities M-Rack is a versatile magnetic mounting system for your aquarium. It brings a stylish, practical...

Red Sea MCP NO2/NO3 Test - 60/100 tests Provides 50 Nitrate plus 50 Nitrite advanced colorimetric tests for marine aquariums...

Easy to Read Dymax RF-20 Sea Water Refractometer Salinity refers to the amount of salt concentration in water. Different salt...

Reef Kinetics Reefbot 60 ml vial - Single unit

HI740228 is a filter disc; part of accessory kit for preparation of samples to be analyzed (nutrients for agriculture) with...

Flow Sensor – 2″ (FS-200) Usually used with a return pump, this flow sensor can be placed in line with...

High sensitivity seawater carbonate hardness test kit easy usable drop test stable titration reagent precise colour change separate indicator and...

TRACE-COLORS PRO MULTI TEST KIT Advanced tests for the high accuracy measurement of Iodine, Potassium and Iron. Recommended for Ultra...

Magnesium Pro Test Kit Advanced titration magnesium test kit Mg     Red Sea’s Magnesium Pro Test Kit is an...

Probe is fully submersible in fresh or saltwater down to 1 meter. Faster Processor with The New Chipset and Motherboard...

The HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. The...

Standard Stand Legs for "Tabletop Mounting" of the CoralVue Aquarium Controller Boards (sold separately). The legs provide a simple yet...