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December 2, 2025
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Product Name
Category/Manufacturer
Item#
Hydrometer / Thermometer
AquaLife Hydrometer/Thermometer
-Measures gravity and temperature of saltwater aquariums
The AquaLife glass combination hydrome
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Catgeory
Testing & Controllers*
Mfg
Aquarium Life Support Systems
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•NEW•
AL301
Refractometer Calibration Standard 35 ppt/ 1.0264 specific gravity 2 oz
Make sure your refractometer is giving you accurate readings. High range formula, best for primarily salt water applications. This calibration
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Aquarium Life Support Systems
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•NEW•
AL218
HI70300L Electrode Storage Solution 500ml Bottle
HI70300L
pH Electrode Storage Solution (500 mL)
HI70300L is an electrode storage solution prepared with reagent grade chemicals that can
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Hanna Instruments
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•NEW•
HN121
Refractometer Calibration Standard 0 ppt 2 oz
Make sure your refractometer is giving you accurate readings. Low range formula, best for primarily fresh water applications. This calibration
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Aquarium Life Support Systems
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•NEW•
AL217
aquavitro Sentia Doser Secondary Dosing Pump
The Sentia Dose Modular Aquarium Doser incorporates a host of fresh features built on the solid foundation of a peristaltic pump. Connect unlimi
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Seachem
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•SALE•
SC163
Apex Double Junction Lab Grade ORP Probe
PRBORPDJ Double Junction ORP Probe
Neptune Double Junction probes will out last most other traditional lab grade probes letting you go l
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Neptune Systems
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NE120
Apex PM2 (Conductivity/Salinity, Temperature) I/O Expansion
Features of the Neptune Systems Salinity Expansion Module:
Monitor/Control Conductivity/Salinity and temperature
4 Measurement ranges (0-
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Neptune Systems
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NE106
Apex PM3 (Dissolved Oxygen, Temperature) I/O Expansion
With so many additives that are hitting the market today, that focus on biological nutrient removal can easily and rapidly take up the dissolved
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Neptune Systems
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NE107
Apex Conductivity Calibration Solution 53.0mS
COND53 53 mS/cm Conductivity Calibration Solution
53.0 mS Conductivity Solution - Used for calibrating conductivity probe for saltwater
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Neptune Systems
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NE124
Ammonia Alert
Ammonia Alert is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Seachem
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SC6626
Reef Master Test Kit
As a reef keeper, you already know how important water testing is to your thriving aquarium. But you are ready for more sensitive species that r
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
API Mars Fishcare
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APH1030
Apex VDM Variable Speed Dimming -Module AI-Sol AcanLighting Compatible
The versatile VDM Expansion Module can be used as an LED Dimming module to simulate Sunrise/Sunset, Lunar Cycle, Clouds and Lighting with Apex Re
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Neptune Systems
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NE112
Apex LSM Lunar Simulator Module (no LEDs)
Add the Lunar Simulator Module Apex Unit to create a true lunar cycle to your reef aquarium. Many fish and corals will spawn following the lunar
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Neptune Systems
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NE113
Natural Scoop 4oz
Excellent for measuring powders, liquids, or pellets.
Measures 25ml to 125 ml, and shows milliliters, ounces, and cups.
Measu
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Catgeory
Testing & Controllers*
Mfg
Aquarium Life Support Systems
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MK101
Digital pH Pen pH Meter pH600AQ
DIGITAL. SIMPLE. COMPACT.
Over 200,000 people have relied on the Milwaukee pH600AQ compact pH pen tester to move from difficult to use a
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Milwaukee
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MIL2001
Calcium (Ca) Test Kit 0.5oz 15ml
This test monitors the calcium level easily and precisely in steps of 20 mg/l (ppm). For approx. 7,500 mg (ppm) calcium. Add sera marin COMPONENT
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Sera
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SER252
Magnesium (Mg) Test Kit 0.5oz 15ml
For monitoring magnesium levels in marine aquariums easily and safely. The magnesium level can be increased with sera marin COMPONENT 6 magnesium
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Sera
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SER253
Ammonia Test Kit
Maintaining good water quality is the key to successful fishkeeping.
Ammonia is the number one killer of both saltwater and freshwater fish.
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
API Mars Fishcare
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APH7057
ORP Redox Probe
The MA921B/2M probe is designed for use with Milwaukee Monitors and Controllers.
DESIGN FEATURES
The Milwaukee Double Junction
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Milwaukee
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MIL2002
Carbonate Hardness/General Hardness (KH/GH) Test Kit
The general hardness (GH) and carbonate hardness (KH) of aquarium water should match that of the natural habitat of the fish. Otherwise, fish wi
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
API Mars Fishcare
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APH7076
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