-
On Sale 15%
Salinity Refractometer Calibration Fluid, 53.0mS/1.026SG - American Marine
American Marine$8.99$7.6453.0 mS standardized fluid for calibrating the PINPOINT® Salinity Monitor with conversion chart -
On Sale 12%
Seawater Refractometer - Red Sea
Red Sea$74.99$65.99Main features of Red Sea’s Seawater Refractometer include:Directly reads the absolutesalinity ofseawaterat25°C/77 0F ( No need for seawater or temperature compensation factors)Specifically designed for the ionic content of seawater (NSW) for... -
On Sale 20%
Bacto Reef Therapy (250 ml) Bacteria - Fauna Marin
Fauna Marin$21.95$17.56Fauna Marin Bacto Reef Therapy is especially developed mix for all kind of marine aquaria. The perfect Mix of halophilic and probiotic bacteria cultures, removes waste products derived from fish food and helps with degradation of particulate organic... -
On Sale 15%
Magnesion - Liquid Magnesium Supplement 2L - Brightwell
Brightwell Aquatics$29.99$25.49Concentrated Magnesium Supplement for All Marine Fish & Reef Aquaria Overview Highly-concentrated ionic magnesium solution. Provides magnesium, which helps regulate the balance between calcium andcarbonates in aquarium water, and is a... -
On Sale 15%
Reef Actif (60 g) Coral Food - Tropic Marin
Tropic Marin$22.27$18.93For treating aquarium water between water changes. Tropic Marin® Reef Actif is made up of a mixture of natural organic substances of predominantly marine origin. The biopolymers in Tropic Marin® Reef Actif bind excess nutrients... -
On Sale 15%
MicroBacter START XLM 15x (250 ML - 8 oz) - Brightwell
Brightwell Aquatics$21.94$18.65Professional 15x strength live tank starter nitrifying bioculture for rapidly cycling new marine fish and reef aquaria and brackish aquariums, and for recovering from overcrowding or disasters where the bacteria bed has been damaged or... -
On Sale 20%
pH 10.01 Calibration Buffer 20 ml (Pack of 10) - Hanna Instruments
Hanna Instruments$19.99$15.99HI70010P is a premium quality pH 10.01 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... -
On Sale 15%
Hydrometer - Tropic Marin
Tropic Marin$36.65$31.15NOTE: The specific gravity is temperature dependent. With increasing temperature the specific gravity decreases. Therefore, the measured water temperature should be 25 °C / 77 °F to obtain a correct result.For an exact, reliable measure of... -
On Sale 15%
Reef Phytoplankton (500mL) - Seachem
Seachem$16.17$13.74Reef 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%
HI774-11 Phosphate Ultra Low Checker® HC Calibration Check Set - Hanna Instruments
Hanna Instruments$18.99$15.19The Phosphate Ultra Low Range Checker® HC Calibration Check Set provides a simple solution to validating the Phosphate Ultra Low Range Checker® HC - HI774 that has a range of 0.00 to 0.90 pp as phosphate. This high-quality set of standards is... -
On Sale 15%
AcroPower Amino Acids for SPS Corals (250 ml) - Two Little Fishies
Two Little Fishies$14.08$11.97AcroPower supplies amino acids that corals need to build their skeletal architecture. Like other cnidaria, corals have a special ability to uptake dissolved amino acids across their entire surface. Closed system aquariums with protein skimming and other... -
On Sale 30%
N-DOC Organics Test Kit - Triton
Triton$49.00$34.30Triton Labs N-DOC Organics Professional Seawater Analysis COMPREHENSIVE TESTING FOR NITROGEN, ALKALINITY & DISSOLVED ORGANIC CARBON Introducing expanded, high resolution testing for key Nitrogen compounds, Dissolved Organic Carbon and extended... -
On Sale 15%
Reef Fusion "1" Two Part Calcium/Buffer System (2 L) - Seachem
Seachem$21.44$18.22Reef Fusion 1™ and Reef Fusion 2™ are the foundation of a system formulated to provide the essentials for the reef aquarium. Reef Fusion 1™ provides calcium, while Reef Fusion 2™ provides alkalinity. When used together, the Reef... -
On Sale 20%
Bacto Reef Blend (250 ml) Bacteria - Fauna Marin
Fauna Marin$21.95$17.56Fauna Marin Bacto Reef Blend bacteria system for marine aquarium is a special composition of halophilic and phototrophic bacteria cultures that quickly activates and stabilizes all relevant biological nutrient cycles in your aquarium. Our best Bacteria... -
On Sale 20%
Checktemp® Digital Thermometer (HI98501) - Hanna Instruments
Hanna Instruments$54.99$43.99The HI 98501 Checktemp® is a digital thermometer with stainless steel penetration probe. It delivers high accuracy temperature measurements over a wide temperature range without worrying about breakage or condensation. The Checktemp® offers NO... -
On Sale 20%
HI73127 Spare Electrode For Testers - Hanna Instruments
Hanna Instruments$79.99$63.99Spare tester electrode. Compatible with: HI 98129, and HI 98130 Combo multi-parameter testers, HI 98127 and HI 98128 pHep testers, and HI 98121 ORP tester. -
On Sale 12%
Reef Foundation C Dry - Magnesium (MG) (1 KG) Powder - Red Sea
Red Sea$31.99$28.15Magnesium 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 30%
Pharma Calcium Chloride 1-Gallon Mix (Single Use) - Bulk Reef Supply
Bulk Reef Supply$8.99$6.29Ultra-pure Calcium Chloride for 2-part dosing in your reef tank! Bulk Reef Supply 2-part additives are the perfect solution to replenish the intake of calcium and alkalinity coral consumes when it grows. Using only pharmaceutical based... -
On Sale 15%
Active Carb (1000 ml) - NYOS Aquatics
NYOS$19.99$16.99ACTIVE CARB NYOS® ACTIVE CARB is a high-quality, steam-activated, pH-neutral activated carbon, the use of which achieves crystal clear, clean aquarium water. Removes harmful yellow substances, organic pollution, cloudiness, odours and... -
On Sale 15%
Waste Away Time Release Gels Marine (100 Gallon) - Dr Tims Aquatics
Dr Tim's Aquatics$21.69$18.44The gels are full of our Waste-Away Bacteria that are automatically and continuously released into your aquarium to consume nutrients and break down fish waste; keeping your tank clean and water clear. REEF SAFE. “Gets into the nooks and crannies... -
On Sale 15%
Marine ReFresh (16 oz) - Dr Tim's Aquatics
Dr Tim's Aquatics$34.99$29.74Re-Fresh revitalizes old, green/brown aquarium water. Re-Fresh is a potent combination of beneficial bacteria that work together to maintain clear water, clean aquarium surfaces and eliminate unpleasant odors. Revitalizes old, green/brown... -
On Sale 15%
Flux RX up to 100g (2000 mg) Fluconazole - Blue Life USA
Blue Life USA$28.04$23.83Flux 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%
Razor Marine System Cleaner, Coral Safe (16 oz - 500 ml) - Brightwell
Brightwell Aquatics$18.19$15.46Unique Marine Systemic System Cleaner designed to target and clean surfaces of live rock, coral decorations and tank walls Overview Complex systemic cleaning polymer product, specifically formulated to clean aquarium live rock surfaces and... -
Sea Salt Mix Bucket (Makes 160 Gallons) - Instant Ocean
Instant Ocean$71.99Instant Ocean® Sea Salt is the most carefully formulated and universally preferred sea salt in the world. The #1 choice of hobbyists, public aquariums, and scientific research facilities, Instant Ocean Sea Salt has set the industry standard for... -
On Sale 15%
MC 720 PH Dosing Kit Controller & Pump - Milwaukee Instruments
Milwaukee Instruments$215.00$182.75Control the pH of your tank/reservoir automatically! The MC122 pH controller and dosing pump (MP810) provides fully automated pH control of aqueous solutions in hydroponic systems. It has been specifically designed to control the pH in mixing tanks for... -
On Sale 15%
Prime (100 mL) - Seachem
Seachem$4.75$4.04Prime® is the complete and concentrated conditioner for both fresh and saltwater. Prime® removes chlorine, chloramine and detoxifies ammonia. Prime® converts ammonia into a safe, non-toxic form that is readily removed by the tank’s... -
On Sale 15%
Reef Builder (1.2KG) - Seachem
Seachem$23.16$19.69Reef Builder™ raises carbonate alkalinity without immediately impacting on pH. With long term use there will be a tendency to stabilize at pH 8.3. Used as directed, Reef Builder™ will not deplete calcium, magnesium, or strontium which usually... -
On Sale 20%
Microfiber Cloth for Wiping Cuvettes - 4 (HI731318) - Hanna Instruments
Hanna Instruments$18.99$15.19HI731318 are microfiber cloths for wiping the cuvettes used in Checker HC (HI700 series) handheld colorimeters, photometers (HI96000 portable series and HI83000 benchtop series) and turbidity meters. These cloths remove dirt, grease and fingerprints... -
On Sale 20%
HI7031L/C 1413 µS/cm Conductivity Standard (500 ml) Bottle - Hanna Instruments
Hanna Instruments$18.99$15.19HI7031L/C is a premium quality 1,413 µS/cm conductivity standard that is prepared against a NIST traceable potassium chloride solution and supplied with a certificate of analysis. Hanna conductivity solutions have the lot number and expiration date... -
On Sale 15%
Zero (250 ml) Nitrate & Phosphate Remover - NYOS Aquatics
NYOS$29.99$25.49ZERO NYOS® ZERO allows you to reduce nitrates and phosphates by biological means to the detection limit. The result is a pure, natural aquarium milieu with strong corals and lively fish. Reduction of nitrates and phosphates by biological... -
Pocket Size TDS & Temperature Meter (TDS-4TMA) - HM Digital
HM Digital$22.45The TDS-4TMA handheld meter is ideal for testing TDS and salt levels of freshwater aquariums and ponds. It can also be used for testing water filtration and purification systems, such as RO and DI, to know when to changes filters and membranes... -
On Sale 15%
Restor Liquid Coral Tissue Nutritional Supplement (250 ML) - Brightwell
Brightwell Aquatics$10.21$8.68Overview Encourages health, growth, reproduction, and vibrant coloration. Provides important nutrients to corals and their allies during periods of stress inducedby changes in lighting and/or prolonged exposure to excessive water temperature... -
On Sale 15%
Safe Dry Water Conditioner (250 g) - SeaChem
Seachem$12.48$10.61Safe™ is the complete and concentrated dry conditioner for both fresh and salt water. Safe™ removes chlorine, chloramine and ammonia. Safe™ converts ammonia into a safe, non-toxic form that is readily removed by the tank’s... -
On Sale 20%
Bacto Reef Balls (100 ml) - Live Reef Bacteria - Fauna Marin
Fauna Marin$16.95$13.56Millions of live reef-bacteria and enzymes in depot balls for easy dosing. BACTO REEF BALLS EFFECT: Crystal clear & healthy water, nutrition control and easy reduction of ammonia, nitrite, nitrate and phosphates. Cleans up organic waste and... -
On Sale 15%
MW102 PH & Temperature Meter w/Auto Calc
Milwaukee Instruments$122.00$103.70Standard portable meters with no frills! Milwaukee’s low cost durable meters for quick and reliable measurements. Milwaukee’s Standard meters are manufactured to be easy to use, practical and accurate. Ideal for the classroom,... -
On Sale 15%
Silicate Test Kit (60 Tests) - Salifert
Salifert$16.21$13.78High levels of silicate can lead to diatom blooms. Some tap water and even RO water may have silicates and should be monitored with a Silicate Test Kit. This kit includes a test vial, syringe, three reagents and a color chart. It offers two methods of... -
On Sale 15%
Stability (100 ML) - Seachem
Seachem$4.35$3.70Stability® will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: "new tank syndrome". Stability® is formulated specifically for the aquarium and contains a... -
On Sale 15%
Reef Plus (2 L) - Seachem
Seachem$41.75$35.49Reef 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%
Phosi-EX (500 ml) - NYOS Aquatics
NYOS$29.99$25.49PHOSI-EX NYOS PHOSI-EX is an extremely high-performance, moist, and secure silicate and phosphate adsorber on an iron basis. The targeted use of PHOSI-EX will prevent unwanted algae plagues effectively and you aquarium will shine in all... -
On Sale 20%
HI700 Ammonia LR Checker HC (Freshwater) - Hanna Instruments
Hanna Instruments$67.99$54.39The Hanna Ammonia Low Range 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...