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Stable reefs don't happen by accident. The equipment and supplements that keep yours thriving through winter. Shop Winter essentials →
Stable reefs don't happen by accident. The equipment and supplements that keep yours thriving through winter. Shop Winter essentials →

Winter Essentials Collection

Stable reefs don't happen by accident.

As water temperatures drop through the cooler months, your reef tank's needs change. Coral metabolism slows, fish appetite reduces, and the equipment keeping your parameters stable has to work harder than it does in summer.

The difference between a reef that thrives through winter and one that struggles usually comes down to a few key things — reliable temperature control, consistent testing, quality nutrition, and dosing that matches what your tank actually needs right now.

This collection brings together the products we trust and recommend for keeping your reef stable and healthy through the cooler months.

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    $112.95 - $166.95
    $112.95 - $166.95
    $112.95 - $166.95
    $112.95

    Hanna Checkers

    Only 4 left!

    The Hanna Marine checkers are the ultimate when it comes between chemical reaction test kits and professional instruments using colorimeter. Chemic...

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    $112.95 - $166.95
    $112.95 - $166.95
    $112.95 - $166.95
    $112.95

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    Salifert Magnesium Test Kit

    16 in stock

    Trusted by discerning reefers for years, Salifert Test Kits feature some of the easiest to read results available. Their test kits include easy to ...

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    $22.50 - $22.50
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    Salifert Calcium Profi Test

    15 in stock

    Salifert Calcium CA Profi Test Kit - 50-100 Tests Made in Holland 50-100 Tests Accurate Fast Calcium is a major constituent of calcareous algae, ...

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    Salifert Carbonate Hardness / Alkalinity KH Profi Test Kit

    13 in stock

    Calcium alone cannot form the skeletal material of corals and allow calcareous algae to grow. Some other substances are needed as well. A few other...

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    Salifert Phosphate Test Kit

    19 in stock

    Trusted by discerning reefers for years, Salifert Test Kits feature some of the easiest to read results available. Their test kits include easy to ...

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    Salifert Nitrate Test Kit

    19 in stock

    Trusted by discerning reefers for years, Salifert Test Kits feature some of the easiest to read results available. Their test kits include easy to ...

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    $21.50
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    $19.95
    Save $1.55 Save $0.00

  • $34.95 - $174.95
    $34.95 - $174.95
    $34.95 - $174.95
    $34.95

    Coral Essentials – Magnesium + Trace

    8 in stock

    Magnesium + Trace Our Coral Essentials, Magnesium + Trace is a concentrated source of liquid magnesium, 12,500 ppm (mg/L) and our own unique blend ...

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    $34.95 - $174.95
    $34.95 - $174.95
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    $34.95

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    $20.55 - $55.65
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    $19.95

    Ocean Nutrition Formula Two Small Pellet

    Only 4 left!

    Ocean Nutrition Formula Two Pellet. Main characteristics are increased palatability and easy digestion. Contains garlic to improve disease resista...

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    $18.65 - $41.15
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    Ocean Nutrition Prime Reef Flakes

    Only 2 left!

    Ocean Nutrition Prime Reef Flakes. The strategic blend of seafood products used in the Prime Reef Flakes translates in some serious protein in a j...

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    $18.65 - $41.15
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    $71.95
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    Ocean Nutrition Marine Algae Seaweed 50 Sheets

    Only 1 left!

    Ocean Nutrition Marine Green Algae Seaweed 50 Sheets. Natural dried seaweeds (marine macro algae), garlic extract. An all natural, very nutritious ...

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    $71.95
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    $71.95
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    $67.75
    Save $4.20 Save $0.00

  • $34.95 - $174.95
    $34.95 - $174.95
    $34.95 - $174.95
    $34.95

    Coral Essentials – Calcium + Trace

    Only 5 left!

    Coral Essentials, Calcium + Trace is a concentrated source of liquid calcium, 100,000 ppm (mg/L) and our own unique blend of trace elements. We hav...

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    $34.95 - $174.95
    $34.95 - $174.95
    $34.95 - $174.95
    $34.95

  • $34.95 - $174.95
    $34.95 - $174.95
    $34.95 - $174.95
    $34.95

    Coral Essentials – Carbonate + Trace

    8 in stock

    Coral Essentials, Carbonate + Trace is a concentrated source of liquid carbonate, 180,000 ppm (mg/L) or 10,000dKH and our own unique blend of trace...

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    $34.95 - $174.95
    $34.95 - $174.95
    $34.95 - $174.95
    $34.95

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    $20.55 - $55.65
    $20.55 - $55.65
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    $19.95

    Ocean Nutrition Formula One Small Pellet

    Only 2 left!

    Ocean Nutrition Formula One Medium Pellet Contains garlic to improve disease resistance, krill for colour enhancement, fresh seafood, plankton and...

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    $20.55 - $55.65
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    Salifert Potassium Test Kit

    Only 5 left!

      Track potassium levels with confidence using the Salifert Potassium Test Kit, the go-to choice for serious aquarists. This precision testing syst...

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    $19.95
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    $19.95
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    $18.65 - $44.15
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    $16.00

    Ocean Nutrition Formula Two Flakes

    Only 1 left!

    Ocean Nutrition Formula Two Flake 154g Excellent flake diet for both herbivorous marine and freshwater fish. This algae boosted diet targets the n...

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    $18.65 - $44.15
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  • $86.95 - $86.95
    $86.95
    $86.95 - $86.95
    $86.95

    True Seawater Refractometer - D-D The Aquarium Solution

    Only 3 left!

    The D-D True Seawater Refractometer is purpose-built for reef aquariums, measuring salinity and specific gravity with precision. Unlike standard br...

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    $86.95 - $86.95
    $86.95
    $86.95 - $86.95
    $86.95

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    $21.95
    $21.95 - $21.95
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    $19.35
    $19.35 - $19.35
    $19.35

    Ocean Nutrition Anemone Pellets

    Only 3 left!

    Empower your anemone with Ocean Nutrition Anemone Pellets - the ultimate food for various species. Give your anemone the nutrition it needs to thr...

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    $21.95
    $21.95 - $21.95
    $21.95
    $19.35
    $19.35 - $19.35
    $19.35
    Save $2.60 Save $0.00

  • $13.50 - $13.50
    $13.50
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    Salifert pH Test Kit

    11 in stock

    Trusted by discerning reefers for years, Salifert Test Kits feature some of the easiest to read results available. Their test kits include easy to ...

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    $13.50 - $13.50
    $13.50
    $13.50 - $13.50
    $13.50

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    $22.50
    $22.50 - $22.50
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    $20.95
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    Salifert Ammonia NH3 Profi Test Kit

    15 in stock

    Detect and measure toxic ammonia and ammonium levels in minutes with the Salifert Ammonia NH3 Profi Test Kit. This straightforward test is essentia...

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    $22.50
    $22.50 - $22.50
    $22.50
    $20.95
    $20.95 - $20.95
    $20.95
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    $20.55 - $55.65
    $20.55 - $55.65
    $20.55
    $18.00 - $50.00
    $18.00 - $50.00
    $18.00

    Ocean Nutrition Formula Two Medium Pellet

    Only 2 left!

    Ocean Nutrition Formula Two Pellet. Main characteristics are increased palatability and easy digestion. Contains garlic to improve disease resista...

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    $20.55 - $55.65
    $20.55 - $55.65
    $20.55
    $18.00 - $50.00
    $18.00 - $50.00
    $18.00
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    $24.15
    $18.65 - $41.15
    $24.15
    $18.65 - $41.15
    $18.65 - $41.15
    $18.65

    Ocean Nutrition Brine Shrimp Plus Flakes

    Only 3 left!

    Ocean Nutrition Brine Shrimp Plus Flakes. This brine shrimp based flake is supplemented with a nutritious blend of seafood, plankton, algae, vitam...

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    $24.15
    $18.65 - $41.15
    $24.15
    $18.65 - $41.15
    $18.65 - $41.15
    $18.65
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    $23.95 - $57.95
    $23.95 - $57.95
    $23.95
    $21.50 - $55.95
    $21.50 - $55.95
    $21.50

    Ocean Nutrition Formula One Medium Pellet

    Only 2 left!

    Ocean Nutrition Formula One Medium Pellet Contains garlic to improve disease resistance, krill for colour enhancement, fresh seafood, plankton and...

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    $23.95 - $57.95
    $23.95 - $57.95
    $23.95
    $21.50 - $55.95
    $21.50 - $55.95
    $21.50
    Save up to $2.45 Save $0.00

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    $20.50
    $20.50 - $20.50
    $20.50
    $18.95
    $18.95 - $18.95
    $18.95

    Salifert Nitrite NO2 Profi Test Kit

    14 in stock

    Nitrite is a substance that is toxic to fish and invertebrates. It is a misconception that once a tank is through its cycle (first 3 or 4 weeks) th...

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    $20.50
    $20.50 - $20.50
    $20.50
    $18.95
    $18.95 - $18.95
    $18.95
    Save $1.55 Save $0.00

  • Save up to $2.65 Save $0.00
    $18.65 - $41.15
    $18.65 - $41.15
    $18.65
    $16.00 - $40.00
    $16.00 - $40.00
    $16.00

    Ocean Nutrition Formula One Flake

    8 in stock

    Ocean Nutrition Formula One Flake. This flake is a perfect ‘all rounder’ for all marine tropicals. The high protein content is ideal for juvenile ...

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    $18.65 - $41.15
    $18.65 - $41.15
    $18.65
    $16.00 - $40.00
    $16.00 - $40.00
    $16.00
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