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Chemistry

Water chemistry is one of the most important engines of the aquarium. Chemistry governs every factor inside the aquarium & directly effects the inhabitants. 

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  • On Sale 12%
    4-Part RCP Complete Reef Care Dosing System - Large (600L - 160 Gal) - Red Sea
    On Sale 12%

    4-Part RCP Complete Reef Care Dosing System - Large (600L - 160 Gal) - Red Sea

    Red Sea

    $179.95
    $158.36
    Meet the new 4-part Complete Reef Care, providing hobbyists with more convenience at no extra cost, and ensuring optimal coral growth and vivid colors with only one test per week!  Our long-term research has revealed that in most reef systems...
  • On Sale 15%
    Iodine Concentrate (250 ml) - Two Little Fishies
    On Sale 15%

    Iodine Concentrate (250 ml) - Two Little Fishies

    Two Little Fishies

    $9.99
    $8.49
    Two Little Fishies Iodide and iodine supplement is made from potassium iodide and seaweed extracts. Use this supplement to provide an extra boost of this important element and observe the positive effects. Great for growing Xenia, other soft corals and...
  • On Sale 15%
    Iron Concentrate (250 ML - 8 oz) - Two Little Fishies
    On Sale 15%

    Iron Concentrate (250 ML - 8 oz) - Two Little Fishies

    Two Little Fishies

    $5.18
    $4.40
    Two Little Fishies Iron Concentrate is a solution that contains the elements iron and manganese, which are essential to the health of all plants, including the symbiotic zooxanthellae in corals and sea anemones, and sea-grasses. Two Little Fishies Iron...
  • On Sale 15%
    Garlic Guard (250 mL) - Seachem
    On Sale 15%

    Garlic Guard (250 mL) - Seachem

    Seachem

    $7.38
    $6.27
    GarlicGuard™ is an appetite/flavor enhancer for freshwater and saltwater fish. GarlicGuard™ will help renew the interest of poor or finicky eaters. GarlicGuard™ contains naturally derived garlic oil. GarlicGuard™ also contains...
  • On Sale 15%
    Alkalin-P 8.3 - Dry pH/KH Builder (1000 gm) - Brightwell
    On Sale 15%

    Alkalin-P 8.3 - Dry pH/KH Builder (1000 gm) - Brightwell

    Brightwell Aquatics

    $17.60
    $14.96
    KH Buffer Powder for all Marine Fish and Reef Aquaria Overview Raises alkalinity, adjust pH to 8.3 Unlike single component KH products such as sodium carbonate, Alkalin 8.3P is a multi-component automatic buffer that regulates pH and its use makes...
  • On Sale 15%
    Clear FX PRO (450 ml) - Blue Life USA
    On Sale 15%

    Clear FX PRO (450 ml) - Blue Life USA

    Blue Life USA

    $45.50
    $38.68
    CLEAR FX PRO is the most advanced all-in-one filtration media available on the market. Our cutting edge technology is compatible with both fresh and saltwater aquariums of all sizes. The easy to use media is the most comprehensive and reliable...
  • HI-7030L Conductivity Solution, (500 mL) bottle - Hanna Instruments

    HI-7030L Conductivity Solution, (500 mL) bottle - Hanna Instruments

    $13.99
    Maximum accuracy is high on the agenda here at Hanna. Browse our Conductivity Calibration Solutions specifically produced for Conductivity meters and electrodes. Hanna conductivity electrodes can be calibrated in just a few minutes, wherever you are...
  • On Sale 30%
    Pharma Kalkwasser (Calcium Hydroxide) 4 lbs - Bulk Reef Supply
    On Sale 30%

    Pharma Kalkwasser (Calcium Hydroxide) 4 lbs - Bulk Reef Supply

    Bulk Reef Supply

    $33.99
    $23.79
    Ultra-pure Kalkwasser for Reef Tanks! BRS Pharma Kalkwasser is not your typical calcium hydroxide. It is made from an ultra-pure source that contains extremely low amounts of aluminum and compared to traditional kalkwasser you can actually see the...
  • On Sale 15%
    Original Balling Part C - Trace Elements (1 kg) - Tropic Marin
    On Sale 15%

    Original Balling Part C - Trace Elements (1 kg) - Tropic Marin

    Tropic Marin

    $18.33
    $15.58
    Tropic Marin® Original Balling Components are the three salts used in the Balling method to allow an independent dosage of calcium and carbonates adapted to each individual aquarium.The three part method adds calcium chloride dihydrate (part A)...
  • On Sale 12%
    Nitrate Pro Test Refill - Red Sea
    On Sale 12%

    Nitrate Pro Test Refill - Red Sea

    Red Sea

    $30.99
    $27.27
    Reagent refill for Red Sea Nitrate 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 12%
    KH Coralline Gro - (500 ml) - Red Sea
    On Sale 12%

    KH Coralline Gro - (500 ml) - Red Sea

    Red Sea

    $19.99
    $17.59
    Marine buffer supplement with trace elements that promote the development of Coralline Algae KH Coralline algae will grow naturally, without any special supplements in all reef systems optimized for hard corals. KH Coralline Gro is a complex of...
  • On Sale 12%
    Marine Test Kit Nitrite & Nitrate - Red Sea
    On Sale 12%

    Marine Test Kit Nitrite & Nitrate - Red Sea

    Red Sea

    $26.99
    $23.75
    It’s all in the balance This combined test kit provides either 100 nitrite or 50 Nitrate and 50 Nitrite advanced colorimetric tests for marine aquariums. This kit is essential during the maturation of all marine and reef...
  • On Sale 15%
    TURBOSTART 700 Freshwater 1 Gallon (128 Ounces) Live Nitrifying Bacteria - Fritz
    On Sale 15%

    TURBOSTART 700 Freshwater 1 Gallon (128 Ounces) Live Nitrifying Bacteria - Fritz

    Fritz Aquatics

    $297.49
    $252.87
    Live product. Keep refrigerated. Do not freeze. Refrigerated life is 4 months with a temperature Range of 34 - 50 degrees F. Use before expiration date on bottom of bottle. Shipping: Live Foods Ship on Select Days & Have a 100% Arrive Alive...
  • On Sale 15%
    Iodine (I2) Test Kit - Salifert
    On Sale 15%

    Iodine (I2) Test Kit - Salifert

    Salifert

    $29.30
    $24.91
    Trust your aquarium to Salifert.This test will accurately measure the form of iodine found in seawater, iodate.  Salifert's wide range of available tests have all been designed to detect the smallest traces of certain elements, without interference...
  • 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%
    Pristine (500 ml) Bacterial Water Conditioner - Seachem
    On Sale 15%

    Pristine (500 ml) Bacterial Water Conditioner - Seachem

    Seachem

    $19.23
    $16.35
    Pristine™ uses bio-augmentation, a non-chemical and natural method, to improve water quality. It provides bacteria that break down excess food, waste and detritus in freshwater and marine systems. It will also reduce excess nutrients (e.g. ammonia,...
  • On Sale 15%
    Magnesium Reefer (MG) Test Kit 50 Tests - NYOS Aquatics
    On Sale 15%

    Magnesium Reefer (MG) Test Kit 50 Tests - NYOS Aquatics

    NYOS

    $19.99
    $16.99
    MAGNESIUM 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 20%
    Magnetic Mini-Stirrer - 115V (HI190M-1) - Hanna Instruments
    On Sale 20%

    Magnetic Mini-Stirrer - 115V (HI190M-1) - Hanna Instruments

    Hanna Instruments

    $89.99
    $71.99
    The HI190M is a compact and lightweight magnetic stirrer. With a small footprint, lack of laboratory bench space is no longer a concern. Built to last with a protective covering and a user-adjustable stirring speed, this small stirrer is great for...
  • On Sale 20%
    HI701 Free Chlorine Checker - Hanna Instruments
    On Sale 20%

    HI701 Free Chlorine Checker - Hanna Instruments

    Hanna Instruments

    $67.99
    $54.39
    The Hanna Free Chlorine Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional...
  • Reef Crystals Salt Mix Bucket (Makes 160 Gallons) - Instant Ocean

    Reef Crystals Salt Mix Bucket (Makes 160 Gallons) - Instant Ocean

    Instant Ocean

    $81.99
    Enriched formulation. Optimum effectiveness. Formulated specially for use in reef aquariums, Reef Crystals contains essential ocean reef elements in concentrations greater than those found in natural sea water. Extra Calcium to help ensure the...
  • On Sale 15%
    Kalkwasser Dry Powder Mix (500 gm - 1.1 lbs) - Two Little Fishies
    On Sale 15%

    Kalkwasser Dry Powder Mix (500 gm - 1.1 lbs) - Two Little Fishies

    Two Little Fishies

    $15.26
    $12.97
    Calcium Supplement Mix. Our pure source of Calcium Hydroxide makes the ideal solution for replenishing calcium and maintaining alkalinity, for corals, clams, and calcareous algae that build skeletons of calcium carbonate. It also helps maintain pH,...
  • On Sale 15%
    Purple Up (8 oz) - Caribsea
    On Sale 15%

    Purple Up (8 oz) - Caribsea

    Caribsea

    $11.75
    $9.99
    PurpleUp™ - uses a unique dual method approach to coralline algae acceleration. This approach is so unique that PurpleUp has been awarded a US patent (US patent No. 7,565,883). It contains ionic calcium; which immediately raises dissolved calcium...
  • On Sale 15%
    Zeo (1000 ml)  -  NYOS Aquatics
    On Sale 15%

    Zeo (1000 ml) - NYOS Aquatics

    NYOS

    $14.99
    $12.74
    ZEO NYOS® ZEO is a high-quality, specially adapted zeolite mixture for seawater aquariums. Regular use reduces nitrate values permanently, simply and safely to the detection limit. Naturally pure, high-quality, free of additives, carrier...
  • On Sale 30%
    Pharma Kalkwasser (Calcium Hydroxide) 2 lbs - Bulk Reef Supply
    On Sale 30%

    Pharma Kalkwasser (Calcium Hydroxide) 2 lbs - Bulk Reef Supply

    Bulk Reef Supply

    $19.99
    $13.99
    Ultra-pure Kalkwasser for Reef Tanks! BRS Pharma Kalkwasser is not your typical calcium hydroxide. It is made from an ultra-pure source that contains extremely low amounts of aluminum and compared to traditional kalkwasser you can actually see the...
  • On Sale 12%
    4-Part RCP Complete Reef Care Dosing System - Medium (300L - 80 Gal) - Red Sea
    On Sale 12%

    4-Part RCP Complete Reef Care Dosing System - Medium (300L - 80 Gal) - Red Sea

    Red Sea

    $109.95
    $96.76
    Meet the new 4-part Complete Reef Care, providing hobbyists with more convenience at no extra cost, and ensuring optimal coral growth and vivid colors with only one test per week!  Our long-term research has revealed that in most reef systems...
  • High Range pH Test Kit (160 Tests) - API

    High Range pH Test Kit (160 Tests) - API

    API

    $9.48
    High Range pH Test Kit The API® High Range pH Test Kit measures pH changes in marine aquariums, aquariums with African Cichlids, and very alkaline tap water. The API® High Range pH Test Kit reads the pH of water within the high range of 7.4...
  • On Sale 20%
    HI721 Iron Checker - Hanna Instruments
    On Sale 20%

    HI721 Iron Checker - Hanna Instruments

    Hanna Instruments

    $67.99
    $54.39
    The Hanna Iron Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional...
  • On Sale 15%
    TURBOSTART 700 Freshwater (4 oz) Live Nitrifying Bacteria - Fritz
    On Sale 15%

    TURBOSTART 700 Freshwater (4 oz) Live Nitrifying Bacteria - Fritz

    Fritz Aquatics

    $25.49
    $21.67
    Live product. Keep refrigerated. Do not freeze. Refrigerated life is 4 months with a temperature Range of 34 - 50 degrees F. Use before expiration date on bottom of bottle. Shipping: Live Foods Ship on Select Days & Have a 100% Arrive Alive...
  • On Sale 15%
    Pinpoint Wireless Thermometer - American Marine
    On Sale 15%

    Pinpoint Wireless Thermometer - American Marine

    American Marine

    $24.99
    $21.24
    PINPOINT® Wireless Thermometer will measure the temperature at the waterproof probe tip on the remote sensor(s), utilizing a radio wave signal, and will display the temperature in Fº or Cº degrees. PINPOINT® Wireless...
  • On Sale 15%
    Denitrate (2 Liter) - Seachem
    On Sale 15%

    Denitrate (2 Liter) - Seachem

    Seachem

    $22.42
    $19.06
    denitrate™ is an economical, natural, porous material with a pore distribution and geometry that promotes both aerobic nitrification within the first few millimeters of depth and anaerobic denitrification at the core. The material has a high...
  • On Sale 20%
    Graduated Pipette - 100 µL (HI731339P) - Hanna Instruments
    On Sale 20%

    Graduated Pipette - 100 µL (HI731339P) - Hanna Instruments

    Hanna Instruments

    $29.99
    $23.99
    The HI731339P is a volumetric pipette designed to measure and transfer exactly 100 µL of solution to a cuvette. To obtain the highest accuracy and precision from the HI758 marine calcium Checker it is necessary to add exactly 100 µL of...
  • On Sale 15%
    Reef Phytoplankton (250mL) - Seachem
    On Sale 15%

    Reef Phytoplankton (250mL) - Seachem

    Seachem

    $8.82
    $7.50
    Reef Phytoplankton™ is a concentrated blend of green and brown marine phytoplankton designed to provide the essential fatty acids, proteins, vitamins, amino acids, with biological carotenoids for invertebrate diet. Size ranges from 1-20 μm to...
  • On Sale 20%
    pH 4.01 Calibration Buffer 20 ml (Pack of 25) - Hanna Instruments
    On Sale 20%

    pH 4.01 Calibration Buffer 20 ml (Pack of 25) - Hanna Instruments

    Hanna Instruments

    $49.99
    $39.99
    HI70004P is a premium quality pH 4.01 calibration buffer solution. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of calibration buffers have...