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December 3, 2021
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  Search results for Testing & Controllers*
161 Items . . .   392 News & Articles . . . Sort By  # List on Page
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Product Name
Category/Manufacturer
Item#
General Hardness (gH) Test Kit 0.5oz 15ml
Makes it easy to monitor the total hardness. For approx. 420°dGH. In case of too low GH values we recommend sera mineral salt. High total hardne (read more . . .)
Catgeory Testing & Controllers*
Mfg Sera Log in to see price   SER462
LED Refractometer
AquaLife LED Reefractometer

-LED for precise viewing

-Automatic Temperature Compensation

-Wide scale range for seawate (read more . . .)
Catgeory Testing & Controllers*
Mfg Aquarium Life Support Systems Log in to see price   AL1001L
Nitrite (NO2) Test Kit 0.5oz 15ml
Nitrite (NO2) is among the most toxic substances for fish in aquariums. It can enrich in the water in case of insufficient biological filtration. (read more . . .)
Catgeory Testing & Controllers*
Mfg Sera Log in to see price   SER464
Nitrate (NO3) Test Kit 0.5oz 15ml
Nitrate (NO3) is an indicator for severe organic pollution. The source of this organic pollution should be eliminated, a partial water change pro (read more . . .)
Catgeory Testing & Controllers*
Mfg Sera Log in to see price   SER465
NO-VOLT Titanium Aquarium Grounding Probe
The Aquatop NO-VOLT Titanium Grounding Probe gives you a positive electrical ground for your aquatic systems. When properly installed, the NO-VOL (read more . . .)
Catgeory Testing & Controllers*
Mfg AquaTop Log in to see price   AQ228
Apex FMK Flow Monitoring Kit (FMM, 2 FS-50, 4 1/2" Adapters, 1 FS-100, 2 1" Unions)
The FMM (Fluid Monitoring Module) is a multi-purpose module that, with the help of various accessories, enables your Apex to do:
•Flow Moni (read more . . .)
Catgeory Testing & Controllers*
Mfg Neptune Systems Log in to see price   NE135
Apex FS-200 Flow Sensor 2" with Unions
Know Your Flow!
2" Flow Sensor for the Fluid Metering Module from Neptune. 
The FS-200 will work with flow rates from 300-3000 gph, and (read more . . .)
Catgeory Testing & Controllers*
Mfg Neptune Systems Log in to see price   NE136
Replacement Vials for Sera Test Kits 3 Pack
The high quality sera vials made of glass are ideally suited for carrying out the sera water tests, but also for exact dosage of care and treatme (read more . . .)
Catgeory Testing & Controllers*
Mfg Sera Log in to see price   SER105
Apex FS-100 Flow Sensor 1" with Unions
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 (read more . . .)
Catgeory Testing & Controllers*
Mfg Neptune Systems Log in to see price   NE137
Apex FS-50 Flow Sensor 1/2" with Adapters
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 (read more . . .)
Catgeory Testing & Controllers*
Mfg Neptune Systems Log in to see price   NE138
Apex ATK V2 Automatic Top-Off Kit ATO
A Complete, Simple, & Standalone ATO!

Plug and play ready. No mounts to assemble. No bare wires to attach.

- 3 Levels of Safe (read more . . .)
Catgeory Testing & Controllers*
Mfg Neptune Systems Log in to see price   NE132
Apex FS-25 Flow Sensor 1/4"
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 (read more . . .)
Catgeory Testing & Controllers*
Mfg Neptune Systems Log in to see price   NE139
Apex LD-1 Leak Detection Probe for Use Under Carpet
The LD-1 is a low profile leak detection probe that is compatible with the Neptune FMM module only. The low profile design makes it perfect for p (read more . . .)
Catgeory Testing & Controllers*
Mfg Neptune Systems Log in to see price   NE140
Apex LD-2 Leak Detection Probe for Solid Surfaces
Be notified if there is ever a leak before it turns into a disaster. Connecting the LD-2 Leak Detector to the FMM module will allow your Apex Con (read more . . .)
Catgeory Testing & Controllers*
Mfg Neptune Systems Log in to see price   NE141
Fluval Submersible Digital Thermometer
Protect your fish from unsafe temperatures with the fully submersible Fluval Digital Aquarium Thermometer. Simply affix the thermometer to the in (read more . . .)
Catgeory Testing & Controllers*
Mfg Hagen Log in to see price   HA158
HI721 Iron Checker FW Colorimeter
HI721 Iron Colorimeter – Checker® HC
Improve the accuracy of your water testing results with our simple handheld colorimeter.
Bring mo (read more . . .)
Catgeory Testing & Controllers*
Mfg Hanna Instruments Log in to see price   HN112
HI721-11 Iron Checker FW Calibration Check Set
HI721-11
Iron Checker® HC Calibration Check Set
The Iron Checker® HC Calibration Check Set - HI721-11 provides a simple solution to val (read more . . .)
Catgeory Testing & Controllers*
Mfg Hanna Instruments Log in to see price   HN114
HI98128 pHep 5 Waterproof pH/Temperature Tester
HI98128
pH/Temperature Tester with 0.01 pH Resolution - pHep®5
The HI98128 pHep®5 is an advanced, waterproof pH and temperature tester (read more . . .)
Catgeory Testing & Controllers*
Mfg Hanna Instruments Log in to see price   HN118
Nitrite Test Kit
Nitrite is produced in the aquarium by fish waste and uneaten fish food. Low levels of nitrite inhibit respiration and suppress the immune syste (read more . . .)
Catgeory Testing & Controllers*
Mfg API Mars Fishcare Log in to see price   APH1016
KH Test Kit Alkalinity** Out of Stock  
AZOO KH Test Kit Alkalinity

- Carbonate Hardness

- Suitable for freshwater and saltwater

AZOO's KH test kit is suitabl (read more . . .)
Catgeory Testing & Controllers*
Mfg Azoo Log in to see price   AZ121
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