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May 20, 2025
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Product Name
Category/Manufacturer
Item#
HI783 Magnesium Test Kit
HI783-25 Magnesium 25 tests
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Catgeory
Testing & Controllers*
Mfg
Hanna Instruments
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•NEW•
HN137
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
HI782 Saltwater High Range Nitrate Checker
Nitrate is the final step in the Nitrogen cycle. Excessive amounts of nitrates in saltwater aquariums facilitate the growth of undesirable organi
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Hanna Instruments
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HN133
HI781 Saltwater Low Range Nitrate Checker
Get highly accurate results with the HI781 Marine Nitrate Low Range Colorimeter. With a digital read out, there is no more struggling to determin
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Hanna Instruments
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HN128
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
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
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
Freshwater Master Test Kit
Testing water is the single most important task an aquarist must perform in order to maintain a healthy, thriving aquarium. This kit makes it qu
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
API Mars Fishcare
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APH1006
Saltwater Master Test Kit
Testing water is the single most important task an aquarist must perform in order to maintain a healthy, thriving aquarium. This kit makes it qu
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
API Mars Fishcare
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APH1007
HI782-25 Nitrate High Range Reagent 25 tests
HI781-25 High Nitrate Reagent is the replacement reagent for the Saltwater high Range Nitrate Checker
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Hanna Instruments
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HN135
Carbonate Hardness (KH) Test Kit
Tests tap water, fresh or saltwater aquariums for carbonate hardness (KH). Can be used to determine the proper dose of pH buffers.
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
API Mars Fishcare
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APH7075
HI784-25 Ammonia Reagents 25 Tests (SO)
HI784 Ammonia Test Kit
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Hanna Instruments
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HN140
HI780-25 pH Reagent 100 Tests*
HI780-25 pH Reagent is the replacement reagent for the HI780 Saltwater PH Checker.
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Hanna Instruments
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HN130
HI781-25 Nitrate Reagent 25 tests
HI781-25 Nitrate Reagent is the replacement reagent for the HI781 Saltwater Low Range Nitrate Checker
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Hanna Instruments
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HN131
PRO Portable Dissolved Oxygen Meter MW600
Description
The Milwaukee MW600 PRO Portable Dissolved Oxygen meter is one of Milwaukee's most popular meters with its reliable and fast oper
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Milwaukee
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MIL1003
pH Test Kit 0.5oz 15ml
Makes it easy to monitor the pH value in fresh and marine water and ponds. For approx. 100 measurements. In case of too low pH values we recommen
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Sera
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SER460
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
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SER462
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
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SER464
HI758U Calcium Checker Marine Colorimeter Test
Hanna HI758U Calcium Checker Marine Colorimeter Test Kit
Saltwater Aquarium Calcium Colorimeter – Checker® HC
Always get accurate
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Hanna Instruments
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HN100
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