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December 6, 2025
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Manufacturer listing for Sera
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Sera (124)
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Item#
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
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SER465
Phosphate (PO4) Test Kit 0.5oz 15ml
Both fish waste and feeding are possible causes for phosphate introduction into the water. A part is taken up as a nutrient by plants, an excess,
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Sera
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SER466
Silicate (SiO3) Test Kit 0.5oz 15ml
Silicate (SiO3) supports the growth of diatoms in marine and freshwater aquariums. The sera silicate-Test allows monitoring the silicate level re
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Sera
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SER100
Iron (Fe) Test Kit 0.5oz 15ml
Iron (Fe) is an important component of plant nutrition. In case the plants have fading leaves this may be due to lacking iron. The sera Fe-Test p
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Sera
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SER101
Copper (Cu) Test Kit 0.5oz 15ml
Copper (Cu) is very toxic especially for invertebrates such as shrimps and crustaceans, but fish also react very sensitively to elevated copper l
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Sera
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SER102
Chlorine (cl) Test Kit 0.5oz 15ml
For monitoring chlorine in aquarium water. For approx. 45 measurements. Chlorine is immediately removed by sera toxivec or sera pond toxivec. ser
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Sera
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SER103
Oxygen (O2) Test Kit 0.5oz 15ml
Quick breathing at the water surface is an unmistakable sign for an oxygen deficiency. Unfortunately, it may then already be too late for acting
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Sera
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SER104
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
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SER105
Marin O-Nip Marine Staple 100 2.1oz Attaching Tablets for Saltwater Fish
Sera marin O-Nip is a highly nutritious treat food that can be attached to the aquarium glass. This treat is great for encouraging shy fish to c
(read more . . .)
Catgeory
Foods & Feeding*
Mfg
Sera
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SER467
Mineral Salt 3.7oz 105g minerals and trace elements
The essential minerals are often insufficiently present in the confined aquarium environment. Fish take up a part of these important substances n
(read more . . .)
Catgeory
Additives*
Mfg
Sera
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SER116
Marin Spirulina Veggie 2.1oz 100 Attaching Tablets for Herbivorous Saltwater Fish
Sera Marin Spirulina tabs are designed for mainly herbivorous fish and invertebrates. These tablets are designed to sink to the bottom or, with
(read more . . .)
Catgeory
Foods & Feeding*
Mfg
Sera
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SER471
Marin Grazer XL Attaching Tablets for Larger Saltwater Fish 250ml
Sera Marin Spirulina Grazer XL is designed for mainly herbivorous fish including tangs, angels, and wrasses. These tablets are designed to sink
(read more . . .)
Catgeory
Foods & Feeding*
Mfg
Sera
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SER473
ImmunPro Mini 1000ml Slowly Sinking Breeder Food for Fish up to 1.6"
Sera ImmunPro Mini is designed for all small ornamental fish (up to 1.6 inches). It is produced with probiotics ensure healthy intestinal flora
(read more . . .)
Catgeory
Foods & Feeding*
Mfg
Sera
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SER475
Super Peat 1.1lb 500g
sera super peat releases valuable humic acids and trace elements well-dosed into the aquarium water. Depending on the present water values sera s
(read more . . .)
Catgeory
Filter & Reactor Media*
Mfg
Sera
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SER124
Koi Junior All Seasons Probiotic 4.8lb with Bacillus subtillis for Healthy, Strong Juvenile Koi
Sera Koi Junior All Seasons Probiotic food is an innovative food suitable for feeding juvenile koi (up to 6 inches) any time of year, when water
(read more . . .)
Catgeory
Foods & Feeding*
Mfg
Sera
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SER478
Koi All Seasons Probiotic 1.1lb with Bacillus subtillis for Healthy, Strong Koi
Sera Koi All Seasons Probiotic food is an innovative food suitable for feeding adult koi any time of year, when water is above 46 degrees F of co
(read more . . .)
Catgeory
Foods & Feeding*
Mfg
Sera
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SER479
Crystal Clear Professional 12.3oz High Performance Filter Medium for Mechanical Filtration*
Sera Crystal Clear Professional high performance mechanical filter media quickly removes even the smallest of particles. The innovative, patente
(read more . . .)
Catgeory
Filter & Reactor Media*
Mfg
Sera
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SER482
Florenette 24 Fertilizer Tablets for Freshwater Plants
sera florenette is the ideal care product for aquatic plants that take up nutrients mainly through the roots. The bottom tablet provides aquatic
(read more . . .)
Catgeory
Plant Care & CO2*
Mfg
Sera
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SER144
Florenette 50 Fertilizer Tablets for Freshwater Plants
sera florenette is the ideal care product for aquatic plants that take up nutrients mainly through the roots. The bottom tablet provides aquatic
(read more . . .)
Catgeory
Plant Care & CO2*
Mfg
Sera
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SER145
CO2 Tabs Plus 20 Tablets
sera CO2 Tabs are simply placed into the according slot of the CO2 diffusion reactor. Upon contact with aquarium water, each tablet releases appr
(read more . . .)
Catgeory
Plant Care & CO2*
Mfg
Sera
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SER171
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