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On Sale 12%
Nitrate Pro (NO3) High Definition Comparator Test Kit - 100 Tests - Red Sea
Red Sea$54.99$48.39Red Sea’s Nitrate Pro Test Kit is an advanced colorimetric test with comparator, measuring the level of nitrate in your reef aquarium to an exceptionally high accuracy of 0.12ppm NO3. Nitrate Pro Test Kit , when used in conjunction... -
On Sale 15%
Red Cyano Rx (Treats 400 Gallons) Removes Cyanobacteria - Blue Life USA
Blue Life USA$23.85$20.27Red Cyano Rx will quickly and effectively treat disease causing Cyano bacteria from live rock, live coral and live sand in your saltwater aquarium without harming any of its inhabitants including beneficial bacteria when used as directed. Unlike other... -
On Sale 20%
(HI780-25) Marine pH Checker Reagents (100 Tests) - Hanna
Hanna Instruments$24.99$19.99The HI780-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine pH Checker® HC. These reagents follow the Phenol Red method in which the reagents produce a range of... -
On Sale 20%
HI784-25 Marine Ammonia HC Checker Reagents (25 tests) - Hanna Instruments
Hanna Instruments$24.99$19.99HI784-25 Marine Ammonia Checker HC (Handheld Colorimeter) Reagents are high-quality reagents for use with the HI784 Marine Ammonia (ppm) Checker HC. Reagents are clearly marked with the lot number and expiration date on each packet for traceability... -
On Sale 15%
(Germany) Bio Actif Sea Salt Bucket (200 Gallon) - Tropic Marin
Tropic Marin$123.14$104.67Tropic Marin® BIO-ACTIF Sea Salt contains naturally occurring marine biopolymers, which support the microbiological conditions in an aquarium and thus protect and enhance the growth of aquarium fauna. To this end, corals will exhibit their... -
On Sale 12%
Reef Foundation B - Alkalinity (KH) (500 ml) Liquid - Red Sea
Red Sea$19.99$17.59KH/Alkalinity Supplement Carbonate & buffer complex for balanced formation of coral skeleton It’s all in the balance Calcium, Magnesium, Strontium and Carbonate are the basic foundation elements of coral skeletons.All of these elements... -
On Sale 12%
Reef Foundation B Dry - Alkalinity (KH) (1 KG) Powder - Red Sea
Red Sea$31.99$28.15KH/Alkalinity Supplement Carbonate & buffer complex for balanced formation of coral skeleton It’s all in the balance Calcium, Magnesium, Strontium and Carbonate are the basic foundation elements of coral skeletons.All of these elements... -
On Sale 20%
HI784 Marine Ammonia Checker Handheld Colorimeter (Saltwater) - Hanna Instruments
Hanna Instruments$67.99$54.39The HI784 Marine Ammonia Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of ammonia colorimetrically. The HI784 is designed specifically to measure ammonia levels in a saltwater aquarium. The 0.00... -
On Sale 15%
Garlic Guard (500 mL) - Seachem
Seachem$11.33$9.63GarlicGuard™ 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 20%
NO2 + NO3 Nitrate/Nitrite AquaHome Precision REFILL Kit (Mastertronic) - Fauna Marin
Fauna Marin$29.95$23.96This is the REFILL Kit, there are no reference materials or case. The Fauna Marin N02 + NO3 Test is very high-resolution and can determine the nitrate/nitrite concentration with a particularly high accuracy in the low concentration range. The... -
On Sale 20%
pH 7.01 Calibration Buffer 20 ml (Pack of 10) - Hanna Instruments
Hanna Instruments$19.99$15.99HI70007P is a premium quality pH 7.01 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 15%
MC120 PH Monitor w/Probe & Mounting Kit - Milwaukee Instruments
Milwaukee Instruments$87.00$73.95The MC Monitors are designed to continuously monitor pH, EC or TDS values directly in your reservoir. Each unit features a user select able set-point. An LED visual alarm is activated and flashes when the pH, EC or TDS level rises either Above or Below... -
On Sale 15%
Fishless Fuel Ammonia Solution (2 oz) - Fritz
Fritz Aquatics$4.23$3.60Establishing a healthy biological filter is essential to every aquatic system. Fritz Fishless Fuel eliminates the guesswork of dry ammonium chloride powders and other ammonia sources such as fish food or other organic materials. When using Fritz Fishless... -
Reef BluePrint Isol8:Mn - Manganese (60 mL) - Captiv8 Aquaculture
Captiv8 Aquaculture$11.99Parameter Manganese Value 1,000 ppm Characteristics Provides manganese, required by photoautotrophs (including zooxanthellae) for critical cellular functions, including: photosynthesis; pigment production; reduction of... -
On Sale 15%
PINPOINT Platinum ORP/REDOX Probe - American Marine
American Marine$59.99$50.99Designed especially for the PINPOINT® ORP Monitor and the PINPOINT® ORP Controller. It features long, continuous duty expectancy, fast response and, most importantly, is non-toxic to your system. Each probe features a 10 foot cable with a high... -
Phosphate Test Kit (150 Tests) - API
API$14.98Phosphate 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... -
Reef BluePrint Isol8:MT - Minor & Trace Elements (60 mL) - Captiv8 Aquaculture
Captiv8 Aquaculture$15.99Parameter Value Iodide 52,840 ppm Molybdenum 9,983 ppm Nickel 444.300 ppm Zinc 371.400 ppm Manganese 259.900 ppm Copper 240.500 ppm Selenium 127.000... -
On Sale 15%
Iron Concentrate (500 ML - 16 oz) - Two Little Fishies
Two Little Fishies$9.99$8.49Two 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%
Flux RX up to 350g (7000 mg) Fluconazole - Blue Life USA
Blue Life USA$51.31$43.61Flux Rx is simple and effective with levels easily achieved and maintained quickly for effectiveness when Bryopsis or Green Hair Algae are present. How to prepare product: Turn off skimmer and discontinue using activated carbon and phosphate... -
On Sale 15%
(Germany) Pro Reef Salt - 160 Gallon (Box) - Tropic Marin
Tropic Marin$95.82$81.45The pharmaceutical grade sea salt especially for modern reef aquaria. Tropic Marin® PRO-REEF Sea Salt has been designed to meet the special requirements of reef aquariums with optimized concentrations of calcium and magnesium, which promote the... -
On Sale 15%
Reef Trace (500 mL) - Seachem
Seachem$11.69$9.94Replenishment of a number of trace elements is required to maintain an environment ideal for the growth and reproduction of marine life, but while the importance of trace elements has been recognized by aquarists for many years, the physiological reasons... -
On Sale 12%
Foundation Supplements Complete Pack CA, ALK, MG - (250ml) - Red Sea
Red Sea$28.99$25.51Red Sea's Reef Foundation Complete Supplement Pack contains all five of the essential foundation elements required in order for corals to thrive within the reef aquarium. Unlike the natural reef where there is an immense reservoir of foundation... -
On Sale 15%
Reef Plus (500 mL) - Seachem
Seachem$11.69$9.94Reef Plus™ is a full spectrum reef supplement containing trace elements, vitamins, and amino acids demonstrated to have a positive impact on the growth of corals and other desirable reef creatures. Reef Plus™ is formulated to provide... -
On Sale 15%
Kalk+2 Kalkwasser Supplement w/Trace (450 gm - 1 lb) - Brightwell
Brightwell Aquatics$19.99$16.99Overview • Contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of Kalk+2 to reef-building invertebrates such as corals, clams, calcareous algae, etc... -
On Sale 15%
PINPOINT pH 4.0 Calibration Fluid (5 Pack)
American Marine$5.95$5.06PINPOINT® High-Precision pH Calibration Fluids come in plastic envelope packets and are extremely accurate and field portable. Each packet contains ample fluid for calibration (about 30 ml). There is a free sample of these included with each... -
On Sale 20%
Checktemp® 1 Digital Thermometer (HI98509) - Hanna Instruments
Hanna Instruments$59.99$47.99The Checktemp® 1 Digital Thermometer - HI98509 is a high-accuracy thermometer with a 1 m (3.3’) flexible, silicone cable connecting the meter and the stainless steel probe. The sharp-tip penetration probe easily lances semi-solid products... -
On Sale 12%
Reef Energy AB+ Plus Coral Nutrition (5 L) - Red Sea
Red Sea$155.00$136.40An all-in-one superfood that will have your corals thanking you, delivering better growth, higher resilience, brighter colors, greater ease of use with automatic dosers, and minimal over skimming. Based on our long-term research, Reef Energy... -
On Sale 15%
Apex PM2 - Salinity, Temperature, I/O Expansion Module - Neptune Systems
Neptune Systems$94.99$80.74Maintaining consistent salinity in your aquarium is key to the well being of every organism inside it. And, as busy as we sometimes are, we don’t even realize our parameters are out of whack until it’s too late. With this module, your Apex... -
On Sale 20%
HI1271 Replacement Spare pH Electrode for HI98100 - Hanna Instruments
Hanna Instruments$29.99$23.99The HI1271 is the replacement pH electrode for the HI98100, HI98103, and HI98115 Checker pH meters. The HI1271 is a single junction pH electrode that has a slim 8 mm polypropylene body that easily fits into test tube and other small sized vessels... -
On Sale 20%
HI772-11 Marine Alkalinity (dKH) Checker® HC Calibration Check Set - Hanna Instruments
Hanna Instruments$29.99$23.99The Marine Alkalinity (dKH) Checker® HC Calibration Check Set - HI772-11 provides a simple solution to validating the Marine Alkalinity Checker® HC - HI772 that has a range of 0.0 to 20.0 dKH. This high-quality set of standards is... -
On Sale 15%
ICP Mass Spec Saltwater Aquarium Water Test (50+ Elements) - ICP Analysis
ICP Analysis$29.95$25.46This is the first Mass Spec test offered to the aquarium industry. We will test over 50 elements down to ppt, parts per trillion. There is not any test more accurate available. This test is up to 1000x more accurate than traditional ICP... -
On Sale 15%
Smart Magnetic Stirir for Testing - AutoAqua
AutoAqua$32.99$28.04A magnetic stirrer for mixing water test reagents efficiently and effortlessly. LABOR AND TIME SAVING Water testing is critical and necessary for aquariums. However, it is annoying and time-consuming to mix different test kits one by one... -
On Sale 15%
K+ Elements Pro Coral Trace 1 (1000 ml) - Tropic Marin
Tropic Marin$34.94$29.70Tropic Marin® K+ Elements contains a selection of essential cationic trace elements for the promotion of growth and the natural coloring of the corals. Trace elements are natural minerals which are needed by all aquarium inhabitants to... -
On Sale 15%
MA800 Padded Protective Case for MA871 MA887 MA884 Refractometer - Milwaukee
Milwaukee Instruments$20.00$17.00Hard carrying case for Digital Refractometers -
On Sale 12%
Reef Foundation C - Magnesium (MG) (500 ml) Liquid - Red Sea
Red Sea$19.99$17.59Magnesium Supplement Magnesium supplement for balanced formation of coral skeleton It’s all in the balance Calcium, Magnesium, Strontium and Carbonate are the basic foundation elements of coral skeletons.All of these elements need to be... -
On Sale 15%
Reef Iodide (500 mL)- Seachem
Seachem$11.24$9.55Reef Iodide™ is a concentrated (8,000 mg/L) stabilized potassium iodide source for reef aquaria that will restore and maintain iodide levels to those found in natural sea water. It is formulated to provide a safe source of iodide that will not... -
On Sale 15%
A- Elements Pro Coral Trace 2 (1000 ml) - Tropic Marin
Tropic Marin$34.94$29.70Tropic Marin® A- Elements contains a selection of essential anionic trace elements for the promotion of growth and the natural coloring of the corals. Trace elements are natural minerals which are needed by all aquarium inhabitants to maintain... -
On Sale 15%
Ammonium Chloride for Fishless Cycling - Dr Tim's (2 oz)
Dr Tim's Aquatics$5.96$5.07This bottle of reagent grade ammonium chloride is for use when fishless cycling. Concentration is 40 mg/ml of total ammonia-nitrogen (TAN). Dose 4 drops per gallon of aquarium water.* Use with One and Only Nitrifying Bacteria... -
On Sale 20%
Professional Sea Salt (20kg) - Fauna Marin
Fauna Marin$86.99$69.59Professional Sea Salt for Demanding Aquariums Fauna Marin Professional Sea Salt contains all the essential macro and trace elements needed to create the ideal coral environment. Professional Sea Salt was specially developed for coral... -
Ammonia Test Kit (130 Tests) - API
API$15.48Ammonia Test Kit The API® Ammonia Test Kit measures ammonia to help prevent fish loss, as ammonia is the number one stressor and killer of tropical fish. Ammonia is released into an aquarium in the forms of uneaten food, decaying organic matter, and...