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Smart Temp Magnetic Thermometer - JW Pet
JW Pet$5.95JW Pet Company Smart temp Thermometer Aquarium Accessory Large : JW Fusion Smart Temp Thermometer features a unique magnetic system that securely holds the thermometer in place inside of the aquarium with a magnet on the outside of the glass. It ranges... -
On Sale 15%
MicroBacter 7 Complete Bioculture for Marine & Freshwater (2L - 67 oz) - Brightwell
Brightwell Aquatics$50.92$43.28Complete Bioculture for Establishing Biological Filtration & Rapidly Improving Water Quality Overview Complex system of non-pathogenic aerobic and anaerobic microbes, as well as natural enzymes, specifically formulated to establish biological... -
On Sale 20%
HI702 High Range Copper Checker (Saltwater) - Hanna Instruments
Hanna Instruments$67.99$54.39The HI702 Checker®HC (Handheld Colorimeter) is a simple, accurate, and cost effective way to measure copper in your saltwater aquarium. Designed as a more accurate alternative to chemical test kits, the HI702 provides quick, accurate results in a... -
On Sale 15%
Prime (500 mL) - Seachem
Seachem$18.32$15.57Prime® 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 20%
Checker Plus pH Tester (HI98100) Plus - Hanna Instruments
Hanna Instruments$59.99$47.99The HI98100 Checker Plus is the next generation of the original Hanna Checker pH tester. The Checker is the most popular pH meter in the world with over 1 million meters used since its introduction in 1991. From students to researchers, the Checker has... -
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 20%
Component 1+, 2+, 3+ Package (3 x 5L Bottles) - Aquaforest
Aquaforest$62.69$50.15Chemical composition of Component 1+2+3+ is based on the method developed by H. Balling. The formula has been fine tuned in our lab and enriched with trace elements that are fundamental for maintaining marine aquarium organisms in good form. As a result... -
On Sale 20%
(HI781-25) Marine Low Range Nitrate Checker Reagents (25 Tests) - Hanna Instruments
Hanna Instruments$24.99$19.99The 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... -
On Sale 20%
Electrode Storage Solution for pH/ORP (500 mL) HI70300L - Hanna Instruments
Hanna Instruments$18.99$15.19HI70300L is a storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes. It is necessary to store a pH electrode in a solution in order to keep the glass membrane of the pH... -
On Sale 15%
TURBOSTART 900 Saltwater (1 oz) Live Nitrifying Bacteria - Fritz
Fritz Aquatics$15.99$13.59Live 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... -
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Electrode Cleaning Solution (230 ml) HI7061M - Hanna Instruments
Hanna Instruments$18.99$15.19HI7061M is a general purpose cleaning solution that can be used for a variety of applications. Electrodes can become dirty from use and will produce inaccurate results even as they read correctly in a pH buffer. Hanna’s cleaning solutions eliminate... -
On Sale 12%
Trace Colors ABCD 4-Pack Supplements (4 @ 100ml) - Red Sea
Red Sea$27.99$24.63Red Sea's Coral Colors ABCD Provides the 31 minor and trace elements required by corals: A – Halogens (I2, Br2, F2) B – Potassium & Boron C – Fe & 7 Complementary Metals D – 18 Bioactive Trace Elements Coral... -
On Sale 12%
Reef Energy AB+ Plus Coral Nutrition (250 ml) - Red Sea
Red Sea$20.49$18.03An 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%
(Germany) Sea Salt Bucket (200 Gallon) - Tropic Marin
Tropic Marin$105.12$89.35Pure, pharmaceutical grade sea salt containing all trace elements found in natural seawater. From (osmosis-) water to seawater. Tropic Marin® Sea Salt CLASSIC is made up of all of the macro elements and trace elements in a... -
On Sale 15%
NeoMarine Reef Salt Mix 150 Gallon Bucket - Brightwell
Brightwell Aquatics$105.05$89.29Brightwell Aquatics NēoMarine Salt Mix creates an ideal marine environment for aquarium inhabitants by providing all major elements, all non-conservative (depleted by natural chemical and biological processes) minor and trace elements, and elements known... -
On Sale 20%
HI764-25 Nitrite Ultra Low Range Reagent (25 Tests) - Hanna Instruments
Hanna Instruments$17.99$14.39The HI764-25 are the replacement reagents for the HI764 Nitrite Ultra Low Range Checker® HC. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each... -
Calcium Test Kit - API
API$13.98Calcium Test Kit Calcium is one of the most important elements in a reef aquarium. Reef invertebrates such as corals, crustaceans, mollusks and even some types of encrusting algae need calcium to grow and remain healthy. Over time, calcium levels drop... -
On Sale 20%
HI736 Phosphorus Ultra Low Range Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$67.99$54.39The HI736 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure phosphorus in marine systems including reef tanks. Phosphorus is an important parameter to measure in aquaculture and aquariums; levels that... -
On Sale 15%
All For Reef (500 ml) - Tropic Marin
Tropic Marin$21.82$18.55ALL-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 12%
Reef Foundation C - Magnesium (MG) (1000 ml) Liquid - Red Sea
Red Sea$28.99$25.51Magnesium 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%
Pinpoint pH Calibration Fluid Kit - pH 4.0, 7.0, 10.0 - American Marine
American Marine$4.95$4.21PINPOINT® 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 12%
Trace Colors A - Iodine (500 ml) - Red Sea
Red Sea$19.99$17.59Coral Color A: A complex of halogens (Iodine, Bromine and Fluorine). The halogens act both as antioxidants and oxidative agents within the soft tissue and mucus layer of corals, reducing the possibility of coral bleaching. In active reef systems, these... -
On Sale 15%
Nitrate (NO3) Reefer Test Kit 40 Tests - NYOS Aquatics
NYOS$24.99$21.24NITRATE 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%
Hanna HI755 Marine Alkalinity Checker HC Alk (Saltwater) - Hanna Instruments
Hanna Instruments$67.99$54.39Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbered Results. BOOM EASY. ZAIR. Zero, Add, Insert, Read. Includes reagents for 25x tests. The Hanna Marine... -
On Sale 12%
Reef Foundation A - Calcium (CA) (1000 ml) Liquid - Red Sea
Red Sea$28.99$25.51Calcium+ Supplement Calcium and Strontium complex for balanced formation of the 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 15%
Apex Lab Grade Salinity/Conductivity Probe - Neptune Systems
Neptune Systems$209.99$178.49Start measuring salinity in your tank and get alerts when out of range. Buy this probe if you are: Replacing an old probe. Adding salinity monitoring to your system via a PM2. -
On Sale 15%
Apex Conductivity/Salinity Calibration Solution 53000 uS (5 Pack) - Neptune Systems
Neptune Systems$15.99$13.59Use this calibration solution to calibrate your Conductivity Probe and PM2 for salinity monitoring. (5 Pack) -
On Sale 12%
Magnesium Pro Test Refill - Red Sea
Red Sea$24.99$21.99Red Sea’s Magnesium Pro Test Kit is an advanced titration test, measuring the level of magnesium in your reef aquarium to an exceptionally high accuracy of 20 ppm. The Magnesium Pro Test test kit enables the accurate dosing of Red Sea’s... -
On Sale 15%
AcroPower Amino Acids for SPS Corals (1 Gallon) - Two Little Fishies
Two Little Fishies$73.42$62.41AcroPower 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 15%
Sea Lab #28 Automatic Replenisher 24 Blocks (2 lb Box) - Sea-Lab
All Misc Brands$29.99$25.49Automatically controls concentrations of 28 elements including calcium, strontium and all 15 essential trace elements. Removes heavy metals and limits ammonia and phosphate while helping to buffer aquarium pH. Available in: 1/2 lb Container (as pictured)... -
On Sale 15%
pH Test Kit - Salifert
Salifert$10.92$9.28If the pH is too low then the cause may be a too low alkalinity and/or insufficient aeration. A low pH can be corrected by improving aeration and by increasing the alkalinity to NSW (Natural seawater) value or upto approx 25% above NSW levels. The... -
On Sale 20%
HI97115UC Bluetooth Marine Master Multiparameter Checker - Hanna Instruments
Hanna Instruments$449.99$359.99One Meter to RULE THEM ALL! Marine Master Waterproof Wireless Multiparameter Photometer w/Bluetooth Connection to the Hanna App where you can save your results. pH (HI780) Alkalinity (HI772) Ammonia (HI784) Calcium (HI758) Magnesium... -
On Sale 12%
Trace Colors C - Iron+ (500 ml) - Red Sea
Red Sea$19.99$17.59Coral Color C: A complex of 8 “light” metals that includes Iron, Manganese, Cobalt, Copper, Aluminum, Zinc, Chrome and Nickel. These micro-elements are essential to many bio-chemical metabolic processes, including respiration, production of... -
On Sale 15%
AcroPower Amino Acids for SPS Corals (500 ml) - Two Little Fishies
Two Little Fishies$22.04$18.73AcroPower 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 12%
Calcium Pro Test Refill - Red Sea
Red Sea$24.99$21.99Refill contains all reagents used in the Red Sea calcium test kitCalcium, an essential component in the building of coral skeletons, is constantly depleted from the aquarium and needs to be monitored on a regular basis. Calcium Pro is an advanced calcium... -
On Sale 15%
PINPOINT pH 10.0 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 15%
35ppt (1.026sg) Refractometer Calibration Solution (1.25 oz) - Fritz
Fritz Aquatics$6.39$5.43Pre-measured refractometer calibration solution takes the guesswork out of properly calibrating your instrument - with no need for expensive or unreliable measuring equipment. A refractometer is essential to the saltwater hobbyist for success. Maintain... -
On Sale 15%
Ammonia (NH3) Test Kit - Salifert
Salifert$13.99$11.89For Fresh and Saltwater Ammonia and ammonium are substances which should be converted rapidly into nitrite followed by nitrate and nitrogen gas.If this does not happen then the aquarium is not fully cycled or biological processes are not proceeding as... -
On Sale 20%
Hanna Master Reef Test Kit (755 Alk, 758 Calcium, 713 Phosphate, 781 Nitrate) Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$271.96$217.57755 Checker The HI755 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure alkalinity via PPM. Crucial in marine environments, alkalinity provides both the carbonate ion required for calcium... -
On Sale 15%
Stability (500 ML) - Seachem
Seachem$16.71$14.20Stability® 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...