Controllers and Testing
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Out of StockMastertronic Automated Water Tester – Focustronic
$1,299.99 -
Out of Stock
Alkatronic Alkalinity Controller – Focustronic
$999.99 -
Add to cartA3 Apex Pro Controller System – Neptune Systems
$899.99 -
Add to cart
SKY LED Aquarium Light – Neptune Systems
$869.99 -
Add to cart
KH Carer Automatic Alkalinity Testing Device – Kamoer
$799.99 -
Add to cart
Versa Pump 4 Pack with Base Station – EcoTech Marine
$799.99 -
Add to cart
Hydros Control X4 Aquarium Controller PRO Pack – CoralVue
$659.99 -
Add to cart
Trident – Marine Aquarium Water Analyzer – Neptune Systems
$639.99 -
Add to cart
A3 Apex Controller System – Neptune Systems
$599.99 -
Add to cart
Hydros Control X3 Aquarium Controller PRO Pack – CoralVue
$539.99 -
Out of Stock
WSK WAV Starter Kit – Neptune Systems
$479.99 -
$84 OFF
Out of Stock
ApexEL Controller System – Neptune Systems – Discontinued
$475.99 -
Add to cart
Hydros Control 4 Starter Pack – Aquarium Controller System – Coralvue
$449.99 -
Add to cart
COR-20 Intelligent Return Pump (2000 GPH) – Neptune Systems
$374.99 -
Add to cart
Hydros Control X4 Aquarium Controller (Controller Only)- CoralVue
$349.99 -
Add to cart
DOS Dosing and Fluid Metering System – Neptune Systems
$329.99 -
Add to cart
PMK PAR Monitoring Kit – Neptune Systems
$324.99 -
Add to cart
COR-15 Intelligent Return Pump (1500 GPH) – Neptune Systems
$319.99 -
Add to cart
A3 Apex Jr Controller System – Neptune Systems
$299.99 -
Add to cart
Hydros Control X3 Aquarium Monitor Pack – CoralVue
$299.99 -
Add to cart
Hydros Control X3 Aquarium Controller Starter Pack – CoralVue
$299.99 -
Add to cart
Hydros WaveEngine V2 Standard Multi Pump Controller – CoralVue
$299.99 -
Add to cart
Energy Bar EB832 – Neptune Systems
$289.99 -
Add to cart
CoralVue HYDROS – Control XP8 Pro Energy Bar
$279.99 -
Add to cart
Helio 1000 Watt (2 x 500W) PTC Smart Aquarium Heater – Innovative Marine
$269.99 -
Add to cart
Marine Monitor (pH/Salinity/Temperature) – Hanna Instruments
$249.00 -
Out of Stock
Helio PTC Smart Aquarium Heater – 700 Watt (2 x 350 Watt) – Innovative Marine
$239.99 -
Add to cart
ATK V2 Auto Top Off Kit – Neptune Systems
$224.99 -
Add to cart
FMK Flow Monitoring Kit – Neptune Systems
$209.99 -
Add to cart
DDR DOS Dual Reservoir – Neptune Systems
$204.99 -
Add to cart
Hydros Control XD Aquarium Controller – CoralVue
$199.99 -
Add to cart
Control X2 Starter Kit – HYDROS
$199.99 -
Add to cart
HYDROS Control XS Starter Kit – Coralvue
$199.99 -
Add to cart
Hydros WaveEngine LE Dual Pump Controller – CoralVue
$199.99 -
Add to cart
Versa Peristaltic Dosing Pump – EcoTech Marine
$199.99 -
Out of Stock
Helio PTC Smart Aquarium Heater – 400 Watt (2 x 200 Watt) – Innovative Marine
$197.99 -
Add to cart
Lab Grade Conductivity/Salinity Probe – Neptune Systems
$197.95 -
Out of Stock
Digital Refractometer for Seawater Analysis – Hanna Instruments
$189.99 -
Out of Stock
EB8 Energy Bar 8 – Neptune Systems
$159.99 -
Add to cart
HYDROS Control XS – Controller Only – Coralvue
$159.99 -
Add to cart
HYDROS Control X2 (Controller Only) – CoralVue
$159.99 -
Add to cart
1LINK Power and Communication Module w/ Power Supply – Neptune Systems
$159.99 -
Add to cart
LDK Leak Detection Kit – Neptune Systems
$154.99 -
Add to cart
ReefRun Dual Controller – Red Sea
$150.00 -
Add to cart
6 Way Switch Toggle Box for Apex Controller – Adaptive Reef
$134.99 -
Add to cart
200 Watt (Single Element) Helio PTC Smart Heater – Innovative Marine
$119.99 -
Add to cart
Neptune Systems – Apex Display Module
$109.99 -
Add to cart
Neptune Systems – Apex (AFS) Automatic Feeding System
$109.99 -
Add to cart
Reef Foundation C (Mg) – Red Sea
$19.99 – $109.00 -
Add to cart
Reef Foundation B (Alk) – Red Sea
$19.99 – $109.00 -
Add to cart
Reef Foundation A (Ca/Sr) – Red Sea
$19.99 – $109.00 -
Add to cart
FMM Fluid Monitoring Module – Neptune Systems
$104.99 -
Add to cart
LLS Liquid Level Sensor – Neptune Systems
$44.99 – $104.99 -
Add to cart
VDM LED & Pumps Control Module – Neptune Systems
$104.99 -
Add to cart
6-Month Trident Reagent Kit – Neptune Systems
$104.99 -
Add to cart
2″ Flow Sensor FS200 – Neptune Systems
$104.95 -
Add to cart
100 Watt (Single Element) Helio PTC Smart Heater – Innovative Marine
$99.99 -
Add to cart
Audible & Visual Alarm for Apex Controller – Adaptive Reef
$99.99 -
Add to cart
Double Junction Lab Grade ORP Probe – Neptune Systems
$99.99 -
Out of Stock
PM2 Salinity Module – Neptune Systems
$89.99 -
Add to cart
Double Junction Lab Grade pH Probe – Neptune Systems
$89.99 -
Add to cart
Hydros ATO Kit – Coralvue
$79.99 -
Add to cart
HI98319 Marine Salinity Tester – Hanna Instruments
$74.99 -
Add to cart
Reef Foundation Pro Multi Test Kit (Ca, Alk, Mg) – RedSea
$74.99 -
Out of Stock
Red Sea Marine Care Multi Test Kit
$74.99 -
Add to cart
Algae Control Pro Test Kit – Red Sea
$74.99 -
Add to cart
Marine Ammonia Colorimeter HI784 – Hanna Instruments
$64.99 -
Add to cart
Calcium Colorimeter HI758 – Hanna Instruments
$64.99 -
Add to cart
Copper High Range – Hanna Instruments
$64.99 -
Add to cart
Ultra-Low Range Phosphorus (PPB) – Hanna Instruments
$9.99 – $64.99 -
Add to cart
High Range Nitrate – Hanna Instruments
$14.99 – $64.99 -
Add to cart
Alkalinity – Hanna Instruments
$9.99 – $64.99 -
Add to cart
1″ Flow Sensor FS100 – Neptune Systems
$62.95 -
Add to cart
Vectra Extension Cable – M2/L2 – EcoTech Marine
$59.99 -
Add to cart
Phosphate Pro (PO4) Test Kit – Red Sea
$54.99 -
Add to cart
HYDROS Dual Inline TDS Sensor – CoralVue
$49.99 -
Add to cart
2-Month Trident Reagent Kit – Neptune Systems
$49.99 -
Add to cart
I/O Breakout Box – Neptune Systems
$44.99 -
Add to cart
PMUP v2 Practical Multi-Purpose Utility Pump – Neptune Systems
$44.99 -
Add to cart
MPR Magnetic Probe Rack – Neptune Systems
$44.99 -
Add to cart
Lunar Simulator 3-String LED – Neptune Systems
$44.95 -
Add to cart
Calcium Pro Test Kit – Red Sea
$41.99 -
Out of Stock
Magnesium Pro Test Kit – Red Sea
$41.99 -
Add to cart
KH / Alkalinity Pro Test Kit – Red Sea
$41.99 -
Add to cart
HTG-400 400 Watt Premier Glass Heater with Protective Guard – AQUATOP
$39.99 -
Add to cart
Universal Dosing Tube Holder (6-12 Lines) – Slide-Loc
$39.99 -
Add to cart
Hydros Rope Leak Sensor Kit – Coralvue
$39.99 -
Add to cart
Hydros Water Level Sensor – Coralvue
$39.99 -
Add to cart
Hydros Wifi Power Strip – Coralvue
$39.99 -
Out of Stock
Hydros Leak Sensor – Coralvue
$39.99 -
Out of Stock
Hydros Skimmer Sensor – Coralvue
$39.99 -
Out of Stock
Checker pH Tester with 0.1 pH Resolution – Hanna Instruments
$39.99 -
Out of Stock
HI98509 Checktemp 1 Digital Thermometer – Hanna Instruments
$39.99 -
Add to cart
LD-3 Optical Multi-Surface Leak Sensor – Neptune Systems
$39.95 -
Add to cart
MOS Magnetic Optical Sensor – Neptune Systems
$39.95 -
Add to cart
OS-1-M Optical Level Sensor V2 With Mount – Neptune Systems
$37.95 -
Out of Stock
Command Bus 50′ Data Only Cable – CoralVue HYDROS
$35.99 -
Add to cart
Hydros Automatic Fish Feeder – Coralvue
$34.99 -
Out of Stock
Saltwater Liquid Master Test Kit – API
$34.99 -
Out of Stock
Salifert Strontium Aquarium Test Kit
$34.99 -
Add to cart
DOS Replacement Pump Head – Neptune Systems
$34.99 -
Out of Stock
Reef Master Test Kit – API
$34.97 -
Add to cart
SV-1 Solenoid Valve – Neptune Systems
$32.99 -
Add to cart
30 Ft. AquaBus Extension Cable – Neptune Systems
$32.99 -
Add to cart
Temperature Probe – Neptune Systems
$32.99 -
Add to cart
1/2″ Flow Sensor FS50 – Neptune Systems
$31.95 -
Add to cart
Nitrate Pro Reagent Refill Kit – Red Sea
$30.99 -
Add to cart
Phosphate Pro Reagent Refill Kit – Red Sea
$30.99 -
Add to cart
Hydros DC CO2 Solenoid Valve – Coralvue
$29.99 -
Out of Stock
Hydros Rope Leak Sensor Extension – Coralvue
$29.99 -
Out of Stock
Salifert Iodine Aquarium Test Kit
$29.99 -
Add to cart
Solid Surface Advanced Leak Detection Probe – Neptune Systems
$29.95 -
Add to cart
ICP Water Analysis Single Test – 33 Elements – ICP-Analysis
$29.95 -
Add to cart
250mL Reef Foundation Supplement Package (Ca/Alk/Mag) – RedSea
$28.99 -
Add to cart
Salinity Probe Stability Kit (SPS) – Vivid Creative Aquatics
$27.99 -
Add to cart
OS-1 Optical Level Sensor V2 – Neptune Systems
$27.95 -
Add to cart
Nitrate/Nitrite Test Kit – Red Sea
$26.99 -
Add to cart
HI758-26 Marine Calcium Checker Reagents – Hanna Instruments
$26.99 -
Add to cart
RedSea Alkalinity Pro Reagent Refill Kit
$24.99 -
Add to cart
Hydros DC Solenoid Water Valve – Coralvue
$24.99 -
Add to cart
Hydros Temp Sensor – Coralvue
$24.99 -
Add to cart
Hydros Slim Temperature Probe – Coralvue
$24.99 -
Add to cart
Magnesium Pro Reagent Refill Kit – RedSea
$24.99 -
Add to cart
Hydros Smart Wifi Plug – Coralvue
$23.99 -
Add to cart
Phosphate Aquarium Test Kit – Salifert
$21.99 -
Add to cart
1/4″ Flow Sensor FS25 – Neptune Systems
$20.95 -
Add to cart
OCTO Varios Pump Extension 2 Meter Cable – Reef Octopus
$19.99 -
Add to cart
Saltwater Multi Reference Solution – Fauna Marin
$19.99 -
Add to cart
Magnesium Test Kit – Salifert
$19.61 -
Add to cart
HI784-25 Marine Ammonia Reagents (25 Pack) – Hanna Instruments
$18.99 -
Out of Stock
Flatworm Exit Aquarium Treatment – Salifert
$18.99 -
Add to cart
Calcium Aquarium Test Kit – Salifert
$18.81 -
Add to cart
6 Ft. AquaBus Cable – Neptune Systems
$17.99 -
Add to cart
Apex to Varios (Y Module Cable) – Neptune Systems
$17.99 -
Add to cart
Copper Aquarium Test Kit – Salifert
$17.89 -
Add to cart
Nitrate Aquarium Test Kit – Salifert
$17.37 -
Add to cart
kH/Alkalinity Aquarium Test Kit – Salifert
$16.46 -
Add to cart
12V Power Supply – Neptune Systems
$15.95 -
Add to cart
Ammonia Test Kit (130 Tests) – API
$15.48 -
Add to cart
3 Ft. AquaBus Cable – Neptune Systems
$14.99 -
Add to cart
HYDROS Float Switch – CoralVue
$14.99 -
Add to cart
HYDROS Klir Drive Port Adapter – CoralVue
$13.99 -
Add to cart
Hydros WaveEngine APX Link Third Party Controller Cable – CoralVue
$12.99 -
Add to cart
Saltwater Calcium Test Kit – API
$12.99 -
Add to cart
Phosphate Test Kit (150 Tests) – API
$12.99 -
Out of Stock
Copper Test Kit (90 Tests) – API
$12.99 -
Add to cart
Nitrite NO2 test Kit (180 Tests) – API
$12.99 -
Add to cart
Nitrate Test Kit (90 Tests) – API
$12.99 -
Add to cart
Ammonia Alert – Continuous Ammonia Sensor – Seachem
$11.99 -
Add to cart
Hydros WaveEngine Direct Drive Maxspect XF150/250/280 Series Pump Adapter – CoralVue
$11.99 -
Add to cart
Hydros WaveEngine Direct Drive Reef Octopus Varios/Octo Pulse Pump Adapter – CoralVue
$11.99 -
Add to cart
IceCap Gyre 1K/2K/3K/4K WaveEngine Adapter – CoralVue HYDROS
$11.99 -
Add to cart
Hydros WaveEngine Direct Drive Maxspect XF330/350 Series Pump Adapter – CoralVue
$11.99 -
Out of Stock
Electrode Storage Solution for pH/ORP (500 mL) HI70300L – Hanna Instruments
$11.99 -
Out of Stock
pH Aquarium Test Kit – Salifert
$11.89 -
Add to cart
Nitrite Aquarium Test Kit – Salifert
$11.86 -
Add to cart
Hydros System Command Bus Cable – 6ft – Coralvue
$9.99 -
Add to cart
Hydros Sense Port 9ft Extension Cable – Coralvue
$9.99 -
Add to cart
Hydros Drive Port 9ft Extension Cable – Coralvue
$9.99 -
Add to cart
Copper High Range Reagent – Hanna Instruments
$9.99 -
Add to cart
High Range pH Test Kit (160 Tests) – API
$9.48 -
Add to cart
Cuvettes Pair – Hanna Instruments
$8.99 -
Add to cart
KH Carbonate Hardness Test Kit – API
$8.98 -
Add to cart
Salinity Reference Solution – Fauna Marin
$6.99 -
Add to cart
Hydros Command Bus Terminator – CoralVue
$4.99 -
Add to cart
10.00 pH Calibration Fluid – Neptune Systems
$1.99 -
Add to cart
HI70024P 35ppt Salinity Calibration Sachet – Hanna Instruments
$1.99 -
Add to cart
pH Calibration Solution – Hanna Instruments
$1.99
