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On Sale 15%
ReMag Magnesium Media for Calcium Reactors (2.2 lbs) - Two Little Fishies
Two Little Fishies$21.41$18.20ReMag is a magnesium-rich natural stone sized to blend well with ReBorn and other calcium carbonate media for use in calcium reactors. ReMag makes maintaining the magnesium level in your reef a no-brainer. Simply use ReMag in a calcium reactor according... -
pH 10.01 Calibration Buffer 20 ml (Pack of 10) - Hanna Instruments
Hanna Instruments$19.99HI70010P 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 25%
(OVERSTOCK) (Expires 11/2025) (HI781-25) Marine Low Range Nitrate Checker Reagents (25 Tests) - Hanna Instruments
Hanna Instruments$16.00$11.99The HI781-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their HI781 Marine Nitrate Low Range Colorimeter. These reagents follow a colorimetric method in which the reaction between... -
Prime (2L) - Seachem
Seachem$57.46Prime® 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... -
Waste Away Time Release Gels Marine (100 Gallon) - Dr Tims Aquatics
Dr Tim's Aquatics$21.69The 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... -
Magnesion - Liquid Magnesium Supplement 2L - Brightwell
Brightwell Aquatics$29.99Concentrated 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... -
HI7031L/C 1413 µS/cm Conductivity Standard (500 ml) Bottle - Hanna Instruments
Hanna Instruments$18.99HI7031L/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... -
Prime (100 mL) - Seachem
Seachem$4.75Prime® 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... -
Reef Phytoplankton (500mL) - Seachem
Seachem$16.17Reef 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... -
Flux RX up to 100g (2000 mg) Fluconazole - Blue Life USA
Blue Life USA$28.04Flux 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... -
Checktemp® Digital Thermometer (HI98501) - Hanna Instruments
Hanna Instruments$54.99The 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... -
Reef Actif (60 g) Coral Food - Tropic Marin
Tropic Marin$22.27For 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... -
Safe Dry Water Conditioner (250 g) - SeaChem
Seachem$12.48Safe™ 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... -
Reef Builder (1.2KG) - Seachem
Seachem$23.16Reef 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... -
Bacto Reef Therapy (250 ml) Bacteria - Fauna Marin
Fauna Marin$21.95Fauna 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... -
Bacto Reef Balls (100 ml) - Live Reef Bacteria - Fauna Marin
Fauna Marin$16.95Millions 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... -
K+ Elements Pro Coral Trace 1 (1000 ml) - Tropic Marin
Tropic Marin$34.94Tropic 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... -
Reef Fusion "2" Two Part Calcium/Buffer System (4 L) - Seachem
Seachem$32.33Reef 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... -
A- Elements Pro Coral Trace 2 (1000 ml) - Tropic Marin
Tropic Marin$34.94Tropic 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... -
Reef BluePrint Isol8:F - Fluoride (60 mL) - Captiv8 Aquaculture
Captiv8 Aquaculture$11.99Parameter Fluoride Value 10,000 ppm Characteristics Provides fluoride; application thereof in conjunction with weekly ICP analysis to guide dosing rates typically yields deep intensification of blue pigmentation in... -
Active Carb (1000 ml) - NYOS Aquatics
NYOS$19.99ACTIVE 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... -
Silicate Test Kit (60 Tests) - Salifert
Salifert$16.21High 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... -
Razor Marine System Cleaner, Coral Safe (16 oz - 500 ml) - Brightwell
Brightwell Aquatics$18.19Unique 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... -
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... -
Alkalinity (KH) Test Kit - Elos
ELOS$17.99KH Alkalinity - Carbonate Hardness Water AnalysisAlkalinity is essentially a means of quantifying the stability of pH in a solution, such as aquarium water. It is a measure of the concentration of various negatively charged ionic compounds (anions) such... -
Dosing Airline Tube Holder - Generic
All Misc Brands$14.99Ideal for Dosing Holder tube 4 Way Tube Hole Max for 8 mm Size / 0.31 Inch Fit for Standard Tank or RIM Tank -
HI700 Ammonia LR Checker HC (Freshwater) - Hanna Instruments
Hanna Instruments$67.99The 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... -
Restor Liquid Coral Tissue Nutritional Supplement (250 ML) - Brightwell
Brightwell Aquatics$10.21Overview 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... -
Marine ReFresh (16 oz) - Dr Tim's Aquatics
Dr Tim's Aquatics$34.99Re-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... -
Microfiber Cloth for Wiping Cuvettes - 4 (HI731318) - Hanna Instruments
Hanna Instruments$18.99HI731318 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... -
PURE Reef Salt Mix (20kg Bag) - NYOS
NYOS$79.99PURE, Trustworthy, & Consistent Ultra-pure, pharmaceutical grade ingredients No yellow tinge Quick solubility Consistent quality Near-natural mineral levels Improves color, growth, and polyp expansion of corals ICP controlled and... -
N-DOC Organics Test Kit - Triton
Triton$49.00Triton 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... -
pH 7.01 Calibration Buffer 20 ml (Pack of 25) - Hanna Instruments
Hanna Instruments$49.99HI70007P 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... -
Phosi-EX (500 ml) - NYOS Aquatics
NYOS$29.99PHOSI-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... -
Nitrate + (1000 ml) - NYOS
NYOS$14.99Control of nutrients made easy. Only raises the nitrate value No undesirable additives High degree of purity Nyos® NITRATE+ and PHOSPHATE+ allows you to raise nitrate and phosphate levels quickly, easily and safely. The correct nitrate and... -
Calcium Pro-High accuracy Titration Test Kit (75 tests) - Red Sea
Red Sea$41.99Red Sea’s Calcium Pro Test Kit is an advanced calcium titration test, measuring the level of calcium in your reef aquarium to an exceptionally high accuracy of 5 ppm. This test kit enables the accurate dosing of Red Sea’s Reef Foundation... -
Zero (250 ml) Nitrate & Phosphate Remover - NYOS Aquatics
NYOS$29.99ZERO 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... -
Magnesium Marine Test Kit - Red Sea
Red Sea$28.99Red Sea's user-friendly Magnesium filtration test provides a quick and reliable measurement of Magnesium in your aquarium to an accuracy of either 50ppm or 100ppm according to your needs. -
(HI782-11) Marine Nitrate HIGH RANGE Certified Check Set - Hanna Instruments
Hanna Instruments$24.99The Marine Nitrate High Range Checker® HC Calibration Check Set - HI782-11 provides a simple solution to validating the Marine Nitrate High Range Checker® HC - HI782. This high-quality set of standards is manufactured in our... -
Reef Plus (2 L) - Seachem
Seachem$41.75Reef 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...