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On Sale 15%
NeoNitro (4 L) - Brightwell
Brightwell Aquatics$44.99$38.24Balanced Nitrogen Source for Nitrogen-Limited, Low-Nutrient Reef Aquaria Overview Used in conjunction with MICROBACTER7 and REEF BIOFUEL or KATALYST, enablesnatural phosphorus uptake to take place in systems with inadequate nitrogen content,lowering... -
Bio-Base ULNS Organic Support System (100 ml) - Triton
Triton$38.00Organic Support System for Reef Aquarium with normal nutrient levels Accelerate bioavailability of trace element supplements Boost beneficial metabolic effects in reef systems Helps prevent Cyanobacteria Helps to maintain proper nutrient... -
Bio-Base Organic Support System (100 ml) - Triton
Triton$38.00Organic Support System for Reef Aquarium with normal nutrient levels Accelerate bioavailability of trace element supplements Boost beneficial metabolic effects in reef systems Helps prevent Cyanobacteria Helps to maintain proper nutrient... -
DI Deionizing Resin (1000 ml) - Triton
Triton$38.00Deionizing resin, for creating a very pure deionized water. TRITON Treatments have been developed to fix specific problems commonly faced by aquarists. Unlike many products on the market TRITON Treatments are quality controlled and free from... -
HI98103 Checker pH Tester with 0.1 pH Resolution - Hanna Instruments
Hanna Instruments$38.00The HI98103 Checker pH tester has been designed with many advanced features while maintaining the look and feel of the original Checker. The redesigned Checker now offers automatic calibration to one or two points, automatic buffer recognition,... -
Reef BluePrint Remedi8 (75g) - Captiv8 Aquaculture
Captiv8 Aquaculture$37.98Characteristics A dry blend which supplements existing biological filtration in established systems, providing a host of non-pathogenic, heterotrophic aerobic and anaerobic microorganisms (dominated by species which focus on remineralization... -
DOS Replacement Pump Head Cap - Neptune Systems
Neptune Systems$36.99DÅŒS Replacement Pump Head Cap for your Neptune Systems DÅŒS module. Complete assembly includes cover, peri-tube, fittings and roller wheel. Neptune Systems recommends that these be replaced approximately every 700 hours of pump run time. -
All For Reef (1000 ml) - Tropic Marin
Tropic Marin$36.83ALL-FOR-REEF is an easy- to-use, highly concentrated solution for the supply of ALL essential minerals and trace elements in new or moderately stocked reef aquariums. Benefits: Complete mineral supply in only one solution The most... -
On Sale 15%
TRM-1 Three-Sensor TDS Monitor - HM Digital
All Misc Brands$42.99$36.54The TRM-1 is a three-sensor TDS monitor that can monitor the TDS levels at three different points. It is perfect for RO/DI systems and other types of filtration and purification systems. Features Displays TDS levels of the three sensing points with... -
On Sale 15%
Reef Fusion Two Part System 1 & 2 Calcium and Carbonate Supplement (2 L) SeaChem
Seachem$42.88$36.45Reef 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 15%
Kalkwasser Dry Powder Mix (2 kg - 4.4 lbs) - Two Little Fishies
Two Little Fishies$42.58$36.19Calcium 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,... -
Saltwater Master Test Kit (High Range pH, Ammonia, Nitrite, Nitrate) - API
API$35.98Saltwater Master Test Kit - A complete kit for testing marine aquarium water. Tests water four ways to protect marine fish and invertebrates from dangerous water conditions. Kit includes tests for: High Range pH, Ammonia, Nitrite, Nitrate, plus four test... -
Freshwater Master Test Kit (pH, High Range pH, Ammonia, Nitrite, Nitrate) - API
API$35.98Liquid Test Kits - This kit tests tap water and aquarium water for five different parameters that affect the health of freshwater fish: pH, High Range pH, Ammonia, Nitrite and Nitrate. Highly accuate and economical. Unique, transparent dome... -
Reef BluePrint Phosph8 (355 mL) - Captiv8 Aquaculture
Captiv8 Aquaculture$35.97Parameter Phosphate Value 50,000 ppm Characteristics Active Components: Potassium phosphate, anhydrous, USP Basic Application 1 drop (0.05 mL) per 25.4 gallons (100 L) increases [PO4] by 0.025 ppm. 1 mL per 25.4... -
Reef BluePrint Nitr8 (355 mL) - Captiv8 Aquaculture
Captiv8 Aquaculture$35.97Parameter Nitrate Value 100,000 ppm Characteristics Active Components: Potassium nitrate, anhydrous, USP Basic Application 1 mL per 25.4 gallons (100 L) increases [NO3] by 1.0 ppm. 5 mL per 20... -
On Sale 15%
B-Ionic Magnesium (1 Gallon) - ESV
ESV$41.99$35.69Through the chemical process known as "ion-pairing" magnesium ion concentration influences the saturation point for calcium carbonate in solution. In general the further the magnesium concentration drops from natural seawater levels (1350 ppm) the more... -
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... -
DETOX Metal Remover (100 ml) - Triton
Triton$35.00TRITON Detox treatment for removal of excess heavy metals from an aquarium (e.g. Copper and Lead), while causing no damage to inhabitants within the aquarium. Caution: Detox should only be used when heavy metals have been detected through TRITON Lab... -
Reef BluePrint Isol8:Ca(OH)2 - Kalkwasser (2.5 kg) - Captiv8 Aquaculture
Captiv8 Aquaculture$34.99Calcium Hydroxide | "Kalkwasser" Characteristics Provides calcium. Increases pH. Kalkwasser application is an integral part of an effective pH-management and coral growth regimen in dedicated coral culture systems... -
Blue Small Bucket Red Sea Salt 55 Gallon (Not Coral Pro) - Red Sea
Red Sea$34.99Red Sea Salt contains biologically balanced, elevated levels of the foundation elements (Calcium, Magnesium, Carbonates) necessary for sustainable, accelerated coral growth. Red Sea Salt is ideal for reef aquariums, in particular for LPS... -
Small Bucket Coral Pro Sea Salt Mix (Makes 55 Gallons) - Red Sea
Red Sea$34.99Red Sea’s Coral Pro Salt contains biologically balanced, elevated levels of the foundation elements (Calcium, Magnesium, Carbonates) necessary for sustainable, accelerated coral growth. Coral Pro Salt is ideal for reef aquariums, in particular for... -
Reef Master Test Kit (Calcium, KH, Phosphate, Nitrate) - API
API$34.98Reef Master Test Kit - To maintain and grow healthy corals, the correct balance of calcium and carbonates is essential, as are low levels of phosphate and nitrate. This kit provides highly accurate testing for each of these critical... -
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... -
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... -
On Sale 15%
Strontion - Liquid Strontium Supplement (2 L) - Brightwell
Brightwell Aquatics$40.64$34.54Strontium is found in the bones of fish and, more importantly, in aragonite, the mineral secreted by reef-building marine invertebrates such as corals, clams, tube worms, and their respective allies. Overall, strontium accounts for between 0.75 - 1.00%... -
On Sale 15%
Calcion - Liquid Calcium Supplement (2L) - Brightwell
Brightwell Aquatics$40.64$34.54Concentrated Calcium Supplement for All Marine Fish & Reef Aquaria Overview Highly-concentrated ionic calcium solution. Increases the concentration of calcium in marine aquarium water to provide coralsand other reef-building invertebrates with... -
On Sale 15%
Reef Complete (2L) - Seachem
Seachem$40.61$34.52Reef Complete® is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH. Calcium and carbonates are essential to all coral growth. If either... -
On Sale 15%
Reef Calcium (2L) - Seachem
Seachem$40.61$34.52Reef Calcium™ is a concentrated (50,000 mg/L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium without altering pH. Polygluconate complexation confers several benefits: it increases the bioavailability... -
On Sale 15%
MicroBacter START XLM 15x (500 ML - 16 oz) - Brightwell
Brightwell Aquatics$40.03$34.03Professional 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 15%
DeChlor (1 gal) Chlorine Remover - Weco
Weco$39.99$33.99Weco DeChlor instantly eliminates chlorine and reduces toxicity of common heavy metals. Just 1 drop per U.S. gallon removes chlorine and chlorine dioxide. DeChlor also reduces the toxicity of heavy metals such as copper, cadmium, mercury, silver, zinc,... -
On Sale 15%
8.8 lbs ReBorn (Original Size) Calcium Reactor Media (8.8 lbs) - Two Little Fishies
Two Little Fishies$39.99$33.99Reborn is back to it's original size & formulation. Large size pieces. Reborn® coarse aragonite media for calcium reactors is composed of fossil skeletons of reef building corals sustainably harvested from pristine sites in the Western... -
On Sale 15%
PINPOINT pH Probe Lab Grade Double Junction - American Marine
American Marine$39.99$33.99The PINPOINT® pH Electrode equals and exceeds lab quality by both specifcation and design. The PINPOINT® pH Electrode has been designed as the most rugged, precise and full-featured probe offered to both the clinical lab and aquaculture... -
On Sale 15%
B-Ionic Calcium Buffer System (2 Gallon) Concentrated Refill - ESV
ESV$38.99$33.14Bionic Calcium Buffer is the original, unique, easy to use, two-component liquid supplement system. When using equal volumes of each component, the aquarist can easily maintain calcium and alkalinity levels with no mixing powders, disruption of ionic... -
Smart Magnetic Stirir for Testing - AutoAqua
AutoAqua$32.99A 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... -
NO2-NO3 Nitrate/Nitrite Test Professional - Tropic Marin
Tropic Marin$32.73Nitrate ions (NO3–) are formed from ammonium (NH4+) as the end product of the nitrification process. Nitrite (NO2–), which is highly toxic to freshwater species in particular, is produced in the first stage of the bacterial process. If the... -
On Sale 15%
Phosphate Rx (1 oz) - Blue Life USA
Blue Life USA$38.40$32.64Phosphate Rx is an amazingly simple and effective product that has revolutionized the way phosphates are removed from saltwater and freshwater aquariums. When added, the formula rapidly binds to phosphate molecules making them inactive and easily... -
On Sale 15%
CoralAmino Free Form Amino Acid Supplement (125 ml) - Brightwell
Brightwell Aquatics$38.14$32.42Free-Form Coral Amino Complex for all Corals & Their Allies Overview Complex of free-form amino acids in the same ratios found within tissues of stony corals. Beneficial to all corals (stony and soft), as well as solitary and colonial polyps... -
Bio Calcium Supplement Powder (1800 g - 64 oz) - Tropic Marin
Tropic Marin$32.42Biologically ideal calcium supplement for reef aquariums using the Balling method Calcium is one of the most important elements in seawater, as together with carbon dioxide it is required for the skeletons of fishes and corals in the form of calcium... -
Magnesium (Mg) (1000 g) Powder - Triton
Triton$32.00Magnesium macro element seawater supplement. Magnesium is an important element that naturally occurs in seawater. Essential for calcification of SPS/LPS coral skeleton. When used in conjunction with TRITON Lab ICP testing aquarists are now able to... -
HI70442P 1500 mg/L (ppm) TDS Calibration Solution 20 mL (25 Pack) - Hanna Instruments
Hanna Instruments$32.00HI70442P is a premium quality 1,500 mg/L (ppm) TDS calibration solution that is NIST traceable and contained in portable single-use sachets. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring...