-
On Sale 12%
4-Part RCP Complete Reef Care Dosing System - Large (600L - 160 Gal) - Red Sea
Red Sea$179.95$158.36Meet 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
Two Little Fishies$9.99$8.49Two 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
Two Little Fishies$5.18$4.40Two 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
Seachem$7.38$6.27GarlicGuard™ 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
Brightwell Aquatics$17.60$14.96KH 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%
LITTLE ReBorn Calcium Reactor Media (8.8 lbs) - Two Little Fishies
Two Little Fishies$35.66$30.31Reborn® coarse aragonite media for calcium reactors is composed of fossil skeletons of reef building corals sustainably harvested from pristine sites in the Western Pacific. When dissolved, ReBorn replenishes calcium and carbonate alkalinity,... -
On Sale 15%
Clear FX PRO (450 ml) - Blue Life USA
Blue Life USA$45.50$38.68CLEAR 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
$13.99Maximum 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
Bulk Reef Supply$33.99$23.79Ultra-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
Tropic Marin$18.33$15.58Tropic 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
Red Sea$30.99$27.27Reagent 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
Red Sea$19.99$17.59Marine 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
Red Sea$26.99$23.75It’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
Fritz Aquatics$297.49$252.87Live 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
Salifert$29.30$24.91Trust 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
Seachem$7.15$6.08PhosGuard 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
Seachem$19.23$16.35Pristine™ 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
NYOS$19.99$16.99MAGNESIUM 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
Hanna Instruments$89.99$71.99The 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
Hanna Instruments$67.99$54.39The 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
Instant Ocean$81.99Enriched 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
Two Little Fishies$15.26$12.97Calcium 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
Caribsea$11.75$9.99PurpleUp™ - 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
NYOS$14.99$12.74ZEO 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
Bulk Reef Supply$19.99$13.99Ultra-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
Red Sea$109.95$96.76Meet 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 20%
(HI740270) 10 ml Syringe with Luer Lock HI781 part - Hanna Instruments
Hanna Instruments$9.99$7.9910 ml Syringe with Luer Lock used in Hanna HI781 Nitrate Checker -
On Sale 15%
Fritz PRO RPM Redline HIGH ALK Salt Mix RED Bucket (48 lbs - Makes 180 Gallons) - Fritz Aquatics
Fritz Aquatics$84.99$72.24Same great benefits from RPM's original formula, PLUS Higher alkalinity for increased SPS growth in higher nutrient systems! Complete Professional Marine Salt Mix for Reef or Fish Only Systems Contains All Essential Major, Minor & Trace... -
High Range pH Test Kit (160 Tests) - API
API$9.48High 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
Hanna Instruments$67.99$54.39The 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
Fritz Aquatics$25.49$21.67Live 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
American Marine$24.99$21.24PINPOINT® 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
Seachem$22.42$19.06denitrate™ 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%
HI736-11 Phosphorus Ultra Low Checker® HC Calibration Check Set - Hanna Instruments
Hanna Instruments$18.99$15.19The Phosphorus Ultra Low Range Checker® HC Calibration Check Set provides a simple solution to validating the Phosphorus Ultra Low Range Checker® HC - HI736 that has a range of 0 to 200 ppb as phosphorus. This high-quality set of standards is... -
On Sale 20%
Graduated Pipette - 100 µL (HI731339P) - Hanna Instruments
Hanna Instruments$29.99$23.99The 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
Seachem$8.82$7.50Reef 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
Hanna Instruments$49.99$39.99HI70004P 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... -
On Sale 20%
HI50021P Calibration Check Solution 20 mL (Single Pack) - Hanna Instruments
Hanna Instruments$1.80$1.44ONE Single 20 mL pack HI50021P is a premium quality calibration check solution used exclusively for the HI9813-6 portable pH/EC/TDS/Temp. meter. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring... -
On Sale 20%
(HI740228) Filter Discs for Select Photometers (25 pcs) - Hanna Instruments
Hanna Instruments$9.99$7.99HI740228 is a filter disc; part of accessory kit for preparation of samples to be analyzed with the HI781 Hanna Nitrate Checker photometers. -
On Sale 20%
HI755-11 Marine Alkalinity (ppm) Checker® HC Calibration Check Set - Hanna Instruments
Hanna Instruments$18.99$15.19The Marine Alkalinity Checker® HC Calibration Check Set - HI755-11 provides a simple solution to validating the Marine Alkalinity Checker® HC - HI755 that has a range of 0 to 300 ppm CaCO3. This high-quality set of standards is...