Apex Accessories

Contains 3x 2-month reagent kits  (based on the default testing schedule of 4-Alk/2-Ca/2-Mg per day).  The 2month reagent kit has at least 240 alka...

2-month reagent kit (based on the default testing schedule of 4-Alk/2-Ca/2-Mg per day).  The reagent kit has at least 240 alkalinity tests and 120 ...

Neptune Conductivity Calibration Solution - 53.0 mS

The Neptune Systems Probe Calibration Kit includes everything you need to calibrate your pH probe and salinity probe for reef tank conditions. The ...

Neptune Apex Trident – Automated CA, KH & MG Testing for Serious Reefers. Reagents not included. Take your reef monitoring to the next level wi...

Neptune Systems Temperature Probe For Apex Controllers

The MPR - Magnetic Probe Rack was designed specifically for the Apex and will hold their larger diameter temperature probe, pH probe, ORP probe, an...

What's the difference between double junction and single junction probes? Single junction probes put the reference electrode in direct contact with...

Neptune Apex Optical Level Sensor (OS-1) Optical sensors are the go to sensor if you want a reliable sensor over a long period. The Neptune Optical...

The ATK (Automatic Top-off Kit) is a simple, standalone, and complete solution for replacing water lost to evaporation.   The new aquarium hobbyist...

The PMUP V2 is a 24VDC submersible pump that was designed to directly connect to the DC24 accessory ports on either the 1Link module OR the same...

THE ULTIMATE MULTIPURPOSE FLUID-MONITORING DEVICE!   The FMM (Fluid Monitoring Module) is a multi-purpose device that, with the help of various acc...

Replacement Reagent Kit for Trident NP (2 Month Supply) Keep your Trident NP Nitrate and Phosphate Tester running smoothly by replacing your reagen...

INTELLIGENT, QUIET, ENERGY EFFICIENT   Your return pump is by far the most important piece of equipment on your aquarium. It circulates the water w...

Neptune Lab grade Conductivity (salinity) Probe Dual Range 0 to 999 us/cm or 0 to 99.9 ms/cm Lab quality probe w/10' cable Minidin 4 Connector

4-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 there by el...

DŌS Replacement Pump Head Cap for your Neptune Systems DŌS module. Complete assembly includes cover, peri-tube, fittings and roller wheel. Neptune ...

The first expansion module, the PM1 , with a pH or ORP, temperature, and 6 digital inputs. The PM1 features are: Monitor/Control pH or ORP, and te...

Usually 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 Ap...

This is a ten foot Male/Female extension cable that will enable you to remotely locate DC24 accessories like the PMUP. NOTE: The maximum supported ...