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Phosphate (PO4)

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Though natural sea water has a major constituent of phosphates, they are of no good in a closed reef aquarium setting. Even if phosphate is present in a reef tank in low concentration, they can spur algae growth and slow coral calcification. If by chance their concentration increases in a reef tank, algae can enormously capture the aquarium and corals can virtually stop growing, and even start to recede. When you are shedding bucks on getting algae removed from tank, it is important that you check on the reason behind their growth. It is most probable that you tank has phosphates that are inviting the algae to dominate your tank.

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  • On Sale 15%
    HI774 Ultra Low Range Phosphate Checker (Saltwater) - Hanna Instruments
    On Sale 15%

    HI774 Ultra Low Range Phosphate Checker (Saltwater) - Hanna Instruments

    Hanna Instruments

    $64.95
    $55.21
    Our HI774 Ultra Low Range Phosphate Checker will be essentially the same specifications as the HI736 Ultra Low Range Phosphorus Checker however it will not require a conversion but read directly in parts per million phosphates compared to parts per...
  • On Sale 15%
    HI713 Phosphate Low Range Checker HC (Saltwater) - Hanna Instruments
    On Sale 15%

    HI713 Phosphate Low Range Checker HC (Saltwater) - Hanna Instruments

    Hanna Instruments

    $64.95
    $55.21
    Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbered Results. BOOM EASY. ZAIR. Zero, Add, Insert, Read. Includes reagents for 6x tests. The Hanna...
  • On Sale 15%
    Phosphate (PO4) Test Kit - Salifert
    On Sale 15%

    Phosphate (PO4) Test Kit - Salifert

    Salifert

    $19.61
    $16.67
    Phosphate also blocks or retards the growth of corals and calcareous algae. One of the scientific studies shows that a phosphate concentration higher than 0.05 mg/L decreases the growth of calcareous algae by 90%! Washing fish food, which is a rich...
  • Phosphate Pro Test Refill (PO4) - 100 Tests - Red Sea

    Phosphate Pro Test Refill (PO4) - 100 Tests - Red Sea

    Red Sea

    $30.99
    Reagent refill for Red Sea Phosphate Pro Test Kit. Enough reagent for 100 tests. Red Sea reagent refills make this line of test kits one of the most affordable high quality test kits available.
  • On Sale 15%
    HI97115UC Bluetooth Marine Master Multiparameter Checker - Hanna Instruments
    On Sale 15%

    HI97115UC Bluetooth Marine Master Multiparameter Checker - Hanna Instruments

    Hanna Instruments

    $449.95
    $382.46
    One Meter to RULE THEM ALL! Marine Master Waterproof Wireless Multiparameter Photometer w/Bluetooth Connection to the Hanna App where you can save your results. pH (HI780) Alkalinity (HI772) Ammonia (HI784) Calcium (HI758) Magnesium...
  • On Sale 15%
    PhosGuard Phosphate Remover (2 L) - Seachem
    On Sale 15%

    PhosGuard Phosphate Remover (2 L) - Seachem

    Seachem

    $35.61
    $30.27
    PhosGuard is spherical. Its shape allows for maximum water flow through the media. Granular phosphate removers can become compacted, dramatically limiting their capacity to remove phosphate. If the media can’t come into contact with the water, it...
  • On Sale 15%
    Salifert Master Reef Testing Combo Kit - Salifert
    On Sale 15%

    Salifert Master Reef Testing Combo Kit - Salifert

    Salifert

    $99.99
    $84.99
    Six Salifert Professional Test Kits Includes Calcium, Nitrate, Phosphate, pH, Alkalinity & Magnesium Includes all the Core parameters of any Saltwater Aquarium/Marine Reef Tank Salifert Nitrate Test Kit - 50 Tests, Salifert Calcium Test...
  • On Sale 15%
    Spot Check Marine Water Test (Single Test) - SaltwaterAquarium.com
    On Sale 15%

    Spot Check Marine Water Test (Single Test) - SaltwaterAquarium.com

    SaltwaterAquarium

    $24.99
    $21.24
    Spot Check - Get marine water testing for the 8 core elements of a saltwater fish tank from the comfort of home.  Use this mail in water test to spot check your marine aquarium and/or verify what your seeing on your home test kits. It is time to...
  • Phosphate Test Kit (150 Tests) - API

    Phosphate Test Kit (150 Tests) - API

    API

    $14.98
    Phosphate can enter your aquarium through tap water, fish waste, and decaying organics such as uneaten food and dead algae.   Excess phosphate contributes to unsightly algae blooms.   This kit tests phosphate levels from 0 to 10 ppm in...
  • On Sale 15%
    PhosGuard Phosphate Remover (500 mL) - Seachem
    On Sale 15%

    PhosGuard Phosphate Remover (500 mL) - Seachem

    Seachem

    $12.26
    $10.42
    PhosGuard is spherical. Its shape allows for maximum water flow through the media. Granular phosphate removers can become compacted, dramatically limiting their capacity to remove phosphate. If the media can’t come into contact with the water, it...
  • On Sale 15%
    Hanna Master Reef Beginner Kit (772 Alk, 758 Calcium, 783 Magnesium, 782 HR Nitrate, 774 ULR Phosphate) Checker HC (Saltwater) - Hanna Instruments
    On Sale 15%

    Hanna Master Reef Beginner Kit (772 Alk, 758 Calcium, 783 Magnesium, 782 HR Nitrate, 774 ULR Phosphate) Checker HC (Saltwater) - Hanna Instruments

    Hanna Instruments

    $324.75
    $276.04
    772 CheckerThe HI772 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure alkalinity in degrees of calcium hardness, commonly abbreviated as dKH. Critical to marine environments, alkalinity not only provides...
  • Algae Control Pro Multi Test Kit Nitrate/Phosphate - NO3/PO4 - Red Sea

    Algae Control Pro Multi Test Kit Nitrate/Phosphate - NO3/PO4 - Red Sea

    Red Sea

    $74.99
    Red Sea’s Algae Control Pro Kit includes high accuracy colorimetric comparator tests for the exceptionally high accuracy measurement of nitrate and phosphate. The nitrate & phosphate tests are essential for the accurate dosing of Red...
  • On Sale 15%
    PhosGuard Phosphate Remover (250 mL) - Seachem
    On Sale 15%

    PhosGuard Phosphate Remover (250 mL) - Seachem

    Seachem

    $7.15
    $6.08
    PhosGuard is spherical. Its shape allows for maximum water flow through the media. Granular phosphate removers can become compacted, dramatically limiting their capacity to remove phosphate. If the media can’t come into contact with the water, it...
  • On Sale 15%
    PhosBond (100 mL) Bagged - Seachem
    On Sale 15%

    PhosBond (100 mL) Bagged - Seachem

    Seachem

    $9.42
    $8.01
    PhosBond™ is a revolutionary new product that combines the phosphate removing capabilities of both aluminum oxide and granular ferric oxide into a singular material forming a synergistic effect. It rapidly removes phosphates and silicates from...
  • Phosphate Pro Test Kit (PO4) - 100 Tests - Red Sea

    Phosphate Pro Test Kit (PO4) - 100 Tests - Red Sea

    Red Sea

    $54.99
    Red Sea’s Phosphate Pro Test Kit is an advanced colorimetric test with comparator, measuring the level of phosphate in your reef aquarium to an exceptionally high accuracy of 0.02ppm PO4. Phosphate Pro Test Kit, when used in conjunction with...
  • Phosphate Marine Test Kit - Red Sea

    Phosphate Marine Test Kit - Red Sea

    Red Sea

    $28.99
    Phosphate Test Kit Accurate measurement of Phosphate in marine aquariums PO4 Red Sea’s colorimetric Phosphate test kit provides a quick and reliable measurement of Phosphate in your aquarium to an accuracy of 0.1ppm PO4. This test kit, in...
  • On Sale 15%
    Hanna Algae Control Beginner Kit (774 ULR Phosphate, 782 HR Nitrate) Checker HC (Saltwater) - Hanna Instruments
    On Sale 15%

    Hanna Algae Control Beginner Kit (774 ULR Phosphate, 782 HR Nitrate) Checker HC (Saltwater) - Hanna Instruments

    Hanna Instruments

    $129.90
    $110.42
    774 CheckerThe HI774 Ultra Low Range Phosphate Checker HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphate in marine systems including reef tanks. Phosphate is an important parameter to measure in aquaculture...
  • On Sale 15%
    PhosBond (250 mL) - Seachem
    On Sale 15%

    PhosBond (250 mL) - Seachem

    Seachem

    $11.50
    $9.78
    PhosBond™ is a revolutionary new product that combines the phosphate removing capabilities of both aluminum oxide and granular ferric oxide into a singular material forming a synergistic effect. It rapidly removes phosphates and silicates from...
  • Phosphate (PO4) Reefer Test Kit 50 Tests - NYOS Aquatics

    Phosphate (PO4) Reefer Test Kit 50 Tests - NYOS Aquatics

    NYOS

    $24.99
    PHOSPHATE REEFER NYOS® REEFER test kits - taking measurements at the laboratory level at an attractive price Water properties as close to nature are the key for every aquarium's success. However, monitoring relevant parameters in seawater is...
  • On Sale 15%
    PhosBond (1 L) - Seachem
    On Sale 15%

    PhosBond (1 L) - Seachem

    Seachem

    $35.57
    $30.23
    PhosBond™ is a revolutionary new product that combines the phosphate removing capabilities of both aluminum oxide and granular ferric oxide into a singular material forming a synergistic effect. It rapidly removes phosphates and silicates from...
  • On Sale 15%
    PhosBond (500 mL) - Seachem
    On Sale 15%

    PhosBond (500 mL) - Seachem

    Seachem

    $20.93
    $17.79
    PhosBond™ is a revolutionary new product that combines the phosphate removing capabilities of both aluminum oxide and granular ferric oxide into a singular material forming a synergistic effect. It rapidly removes phosphates and silicates from...
  • On Sale 15%
    PhosBond (4 L) - Seachem
    On Sale 15%

    PhosBond (4 L) - Seachem

    Seachem

    $121.33
    $103.13
    PhosBond™ is a revolutionary new product that combines the phosphate removing capabilities of both aluminum oxide and granular ferric oxide into a singular material forming a synergistic effect. It rapidly removes phosphates and silicates from...
  • On Sale 15%
    Phosphate (PO4) Test Kit - Elos
    On Sale 15%

    Phosphate (PO4) Test Kit - Elos

    ELOS

    $22.99
    $19.54
    Phosphate Water Analysis for Fresh Water or Marine AquariumsPhosphate build up in the tank appears to be a fairly common problem in fresh water and in marine aquariums. They are present in most tap water supplies, they are also introduced to aquarium...
  • On Sale 15%
    Hanna Master Reef PRO Kit (772 Alk, 758 Calcium, 783 Magnesium, 781 LR Nitrate, 782 HR Nitrate, 713 Phosphate, 774 ULR Phosphate) Checker HC (Saltwater) - Hanna Instruments
    On Sale 15%

    Hanna Master Reef PRO Kit (772 Alk, 758 Calcium, 783 Magnesium, 781 LR Nitrate, 782 HR Nitrate, 713 Phosphate, 774 ULR Phosphate) Checker HC (Saltwater) - Hanna Instruments

    Hanna Instruments

    $454.65
    $386.45
    772 CheckerThe HI772 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure alkalinity in degrees of calcium hardness, commonly abbreviated as dKH. Critical to marine environments, alkalinity not only provides...
  • On Sale 15%
    FOWLR Deluxe Saltwater Test Set (HI98319, 781, Salifert PO4)
    On Sale 15%

    FOWLR Deluxe Saltwater Test Set (HI98319, 781, Salifert PO4)

    Salifert

    $129.99
    $110.49
    Hanna Salinity/Temperature Checker - HI98319 Salinity/Temperature Meter - Each meter is supplied with: CR2032 battery (inside the meter), Storage / Protection sleeve, Instruction manual, Quality certificate, and 35.00 ppt calibration standard sachet (4...
  • On Sale 15%
    Reef Tank Beginner Saltwater Test Set
    On Sale 15%

    Reef Tank Beginner Saltwater Test Set

    Salifert

    $119.99
    $101.99
    Generic Refractometer - It is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and...
  • Compact Lab - Essentials Test Kit (5 Parameters) - Tropic Marin

    Compact Lab - Essentials Test Kit (5 Parameters) - Tropic Marin

    Tropic Marin

    $63.64
    The test set Tropic Marin® Compact Lab includes all the important tests for prompt and precise determination of water values. The pH value, alkalinity, phosphate level, nitrite and nitrate content as well as the ammonia concentration of the...
  • On Sale 15%
    FOWLR Beginner Saltwater Test Set (Refractometer, Salifert NO3, PO4)
    On Sale 15%

    FOWLR Beginner Saltwater Test Set (Refractometer, Salifert NO3, PO4)

    Salifert

    $65.99
    $56.09
    Generic Refractometer - It is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and...
  • On Sale 15%
    Hanna Algae Control PRO Kit (774 ULR Phosphate, 713 Phosphate, 781 LR Nitrate, 782 HR Nitrate) Checker HC (Saltwater) - Hanna Instruments
    On Sale 15%

    Hanna Algae Control PRO Kit (774 ULR Phosphate, 713 Phosphate, 781 LR Nitrate, 782 HR Nitrate) Checker HC (Saltwater) - Hanna Instruments

    Hanna Instruments

    $259.80
    $220.83
    774 CheckerThe HI774 Ultra Low Range Phosphate Checker HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphate in marine systems including reef tanks. Phosphate is an important parameter to measure in aquaculture...
  • On Sale 15%
    Phosphate Test Kit (40 Tests) - ASF
    On Sale 15%

    Phosphate Test Kit (40 Tests) - ASF

    ASF

    $23.99
    $20.39
    This test kit is designed for both freshwater and saltwater aquariums, ponds, and turtle enclosures. The kit provides fast, easy, and accurate measurements. These kits include an easy to read color chart so that the results are clear. Multiple tests...
  • On Sale 15%
    Phosphate Liquid Test Kit (Up to 150 Tests) - Fritz Aquatics
    On Sale 15%

    Phosphate Liquid Test Kit (Up to 150 Tests) - Fritz Aquatics

    Fritz Aquatics

    $14.99
    $12.74
    East to Read Instructions Essential for a Healthy Tank Accurate in both Fresh and Saltwater About Fritz Liquid Test Kits - Phosphate Excess nutrients can lead to poor water quality very quickly. If not controlled, phosphate (PO4) can...