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Best AQUARIUM REEF TEST KITS

At Aquarium Accessories Reviews, we take pride in our rigorous review process. Each product is handpicked based on market research, personally tested by our experienced team for functionality and durability, and evaluated for value for money. Alongside our hands-on experience, we also consider real user feedback. This meticulous approach ensures we provide honest, transparent, and comprehensive reviews to guide your aquarium accessory purchases.

We will continue to update this buyer's guide once a month or two.

The best AQUARIUM REEF TEST KITS in 2024 - Detailed Product Descriptions

1. Salifert Magnesium (MG) Test Kit

By Brand: Salifert

Salifert Magnesium (MG) Test Kit

The magnesium test kit effectively tests and provides a balanced magnesium aquarium
The magnesium test kit can perform up to 50 tests
The test will measure accurate steps of color change in tank
The Package Weight Of The Product Is 0.5 Pounds

3. Hanna Instruments HI736 Phosphorus Ultra Low Range Checker HC for Saltwater Aquariums

By Hanna Instruments Store

Hanna Instruments HI736 Phosphorus Ultra Low Range Checker HC for Saltwater Aquariums

More accurate than chemical test kits, less expensive than professional testing
Accuracy of + or - 5% using an adaptation of Standard Method Ascorbic Acid
Single button operation for ease of use
Large LCD screen for readability
Auto shut-off to prolong battery life

6. Professional Automatic Temperature Compensation Salinity Refractometer for Aquariums, Marine Monitoring, Saltwater Testing.Dual Sacle: 0-100ppt & 1.000-1.070 Specific Gravity

By Magnum Media Salinity 10ATC Store

Professional Automatic Temperature Compensation Salinity Refractometer for Aquariums, Marine Monitoring, Saltwater Testing.Dual Sacle: 0-100ppt & 1.000-1.070 Specific Gravity

Upgraded Quality
Partable Hard Storage Box
Dual Salinity Scale
Automatic Temperature Compensation
Full 12 Month Replacement Warranty
No Battery Needed

7. Seachem Laboratories Ammonia Alert 1 Year Monitor

By Seachem Store

Seachem Laboratories Ammonia Alert 1 Year Monitor

AMMONIA ALERT 1 YEAR MONITOR Ammonia Alert is an innovative color device for continuously detecting and monitoring toxic free ammonia.
A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. No test kits, chemicals, or procedures are needed.
The device detects less than 0.05 mg/L (ppm) free ammonia and alerts you to the #1 killer before any sign of stress.
It lasts over a year. This product is not recommended for use at acid ph. Marine or freshwater use makes the cluster screen like new again
Easy to clean and wipe the dirt off without the fear to scratch the cluster screen .Seals existing scratches underneath and makes

9. Aquarium Test Tube Holder, Hand-Made Rack, with 6 Holes and 6 Drying Poles, customised for use with Aquarium Test Tubes Including API Test Tubes, by Tililly Concepts

By Brand: Tililly Concepts

Aquarium Test Tube Holder, Hand-Made Rack, with 6 Holes and 6 Drying Poles, customised for use with Aquarium Test Tubes Including API Test Tubes, by Tililly Concepts

Will safely hold up to 12 test tubes - 6 in the staggered slots and 6 on the drying poles
Compatible with both API and Tililly Concepts 5 ml aquarium test tubes (13mm diameter)
Rinse and dry your test tubes on the drying poles
Compact size; made of shatter-resistant acrylic
Complements all API freshwater and saltwater tests
Please note, test tubes are not included in this offer
If this version does not meet your needs please consider our 8 hole version

10. Seachem 28658 Alert Combo Pack

By Seachem Store

Seachem 28658 Alert Combo Pack

A year of continuous monitoring
No Strips, no tests, just constant readings
Monitors pH and ammonia

12. ZAOJIAO Auto-top-Off ATO Solution Auto Water Filler Adjustable Float Valve Mounting Aquarium Sump + 1/4" Tube 3 Meters 9.8ft Pipe RO Water Filter System PE White

By SENSTREE Store

ZAOJIAO Auto-top-Off ATO Solution Auto Water Filler Adjustable Float Valve Mounting Aquarium Sump + 1/4

Including float valve, acrylic bracket, nylon screw and 1/4" 3m 9.8ft pipe.
The ATO system is easy to hang on to your aquarium sump
It is suitable for 5 to 18mm thickness of aquarium
The range of Water level from aqurium sump top is 0-25mm or 0-10"
Pressure:0.02-0.8MPa, material: Polyethylene Plastic and Acrylic

13. ZAOJIAO Auto-top-Off ATO Solution Auto Water Filler Adjustable Float Valve Mounting for Aquarium Sump

By SENSTREE Store

ZAOJIAO Auto-top-Off ATO Solution Auto Water Filler Adjustable Float Valve Mounting for Aquarium Sump

★The pipe shown in the picture is for example purposes. Material: transparent PC material, durable and solid, no breaking.
★Convenient. The ATO system is easy to hang on to your aquarium sump, two mounting methods for different tank.
★Easy to adjust up and down, adjustable height holder make different water levels possible.
★It works for tanks and sumps that have up to 5/8"(16mm) thick walls. The range of water level from aqurium sump top is 0-20cm or 0-8".
★It meets 1/4" tube, come with O-ring, no leaking. Pressure: 0.02-0.8MPa.

14. Fauna Marin Reef ICP Test

By Brand: Fauna Marin

Fauna Marin Reef ICP Test

The Fauna Marin Reef ICP Test gives a quick, accurate, and easy overview of 37 water values in reef aquariums. From macro elements to trace elements and pollutants, you get a complete overview with corresponding dosage and action recommendations.
Detected elements: Sodium, magnesium, calcium, potassium, strontium, boron, iodine, sulphur, phosphate, phosphorus, silicon, manganese, lithium, molybdenum, iron, bromine, chromium, cobalt, beryllium, vanadium, zinc, antimony, copper, barium, selenium, cadmium, tin, aluminium, titanium, nickel, scandium, zirconium, silver, tungsten, lanthanum, arsenic, mercury and more.
Instructions: After receiving your analysis kit, register your Reef ICP Test at the Fauna Marin Laboratory Software Website, and send your sample back to the Fauna Marin ICP Lab (address in Houston, Texas on provided envelope).

15. 85mm Glass Test Tubes with Leak-Proof Screw Caps and 5 ml Marking, Set of 6, Ideal for Aquarium Water Tests, by Tililly Concepts

By Brand: Tililly Concepts

85mm Glass Test Tubes with Leak-Proof Screw Caps and 5 ml Marking, Set of 6, Ideal for Aquarium Water Tests, by Tililly Concepts

Set of 6 flat-bottomed glass test tubes with leak-proof screw caps - NO MORE SPILLS!
Customised for use as REPLACEMENT TEST TUBES for all aquarium water tests.
5ml mark for aquarium water and sufficient additional capacity to hold API test solutions.
Made of borosilicate glass of 1mm wall thickness, 13 mm diameter.
Please note: rack is not included in this offer.

16. 1/4 inch Plastic Adjustable Tube Float Valve Kit for Aquarium Water purifiers , Auto Water Filler Controller Auto-top-Off System, RO Water Reverse Osmosis System (2 Float + 10 Connect)

By Brand: JBTOZIUY

1/4 inch Plastic Adjustable Tube Float Valve Kit for Aquarium Water purifiers , Auto Water Filler Controller Auto-top-Off System, RO Water Reverse Osmosis System (2 Float + 10 Connect)

The float can be manually adjusted for side or top use,No tools required , easy to use .
This auto off Float Valve system is easy to install on to your aquarium sump,only suitable for the aquarium which is under 11mm thickness.
Standard fitting for water filter systems using 1/4" OD Water tube
The Tube Float Valve diameter is 5/8",It can be mounted on the side or top , Comes with a O-ring, don't leak.
Material: Polypropylene Plastic Tubing,Non-toxic ingredients,Odorless and tasteless

17. Hanna Marine Ammonia Checker HI784

By Hanna Instruments Store

Hanna Marine Ammonia Checker HI784

Simple and accurate digital test for small, trace amounts of ammonia
Easier to use and more accurate than chemical test kits
Dedicated to a single parameter
Small size, big convenience
Ideal for: Saltwater Aquariums, Marine, and Aquaculture Applications

18. Chaoos Digital Salinity Tester, 5 in 1 TDS/PH/EC/Temp&Salinity Tester Waterproof LCD Saltwater Meter with ATC Large Range 0-200ppt for Seawater, Aquariums, Marine Monitoring, and Koi Fish Pond

By Chaoos Store

Chaoos Digital Salinity Tester, 5 in 1 TDS/PH/EC/Temp&Salinity Tester Waterproof LCD Saltwater Meter with ATC Large Range 0-200ppt for Seawater, Aquariums, Marine Monitoring, and Koi Fish Pond

【Multifunctional Salt Tester】:Water tester professional measurement pH, TDS(Solubility), EC(Conductivity), Salinity and Temperature. Multifunctional EC test large range 0~10000ppm/10~200ppt or 0.0~25% to meet your daily needs. The upgraded sensor head electrode is made of titanium metal with high sensitivity, which can measure liquid values accurately and quickly.
【Powerful Performance】:5-in-1 digital salinity tester has automatic temperature compensation function. Salt tester can reduce the error caused by the change of liquid temperature. IP67 waterproof level, dustproof and leak-proof, no need to worry about the operation. LCD backlight display, clear and convenient digital reading. Environmentally friendly automatic power off function, turn off the power after 5 minutes without any operation.
【Easy to Use】:Portable pen salinity meter, you can get accurate data within 30 seconds. Simply dip the electrode into the solution or take a cup of sample for measurement, wait a few seconds for the data to stabilize, press the HOLD/TEMP button to lock the measurement value, and you can get the data value you want. TDS meter is also a key to switch the test mode, the operation is smart and convenient.
【Wide Range of Application】:Digital pool water tester can be applied to drinking water to ensure the quality of drinking water. Salt tester can also be used to measure the pool, the beauty spa, aquaculture, sewage treatment, teaching experiments, medical, fish tank koi fish, seawater, aquariums and marine salinity and monitoring.
【Professional After-Sales】:We promise a 2-month warranty, if you receive or encounter any problems and questions during use, please do not hesitate to contact us in time, we will reply to you within 12 hours. Your smile is our eternal pursuit.

19. CoralVue ITC Reefculture PARwise Device

By Brand: CoralVue

CoralVue ITC Reefculture PARwise Device

The CoralVue ITC Reefculture PARwise Device is a unique light meter with the ability to measure spectrum. It can be used underwater and in air. It gives you all of the relevant lighting measurements required to make informed decisions.
Requires a Chrome Browser to access PARwise web-based app. iOS devices, such as iPhones and iPads, are not compatible with this device.
PARwise is ITC Reefculture's latest tool which ends the question of what setting the aquarium lights should be on, whether that be brightness, color (spectrum), or photoperiod. PARwise empowers reef keepers to make the right decisions over their lighting settings.
Perfect growth rates need three things: The correct wavelengths, the correct light intensity, and both for the right amount of time. Light changes with depth and clarity, too, do the requirements of plants and animals. Unfortunately, the human eye is not particularly good at understanding light levels and colors!
PARwise provides a simple-to-use light meter that will give you a deep understanding of your lighting and how to tune it to perfection—designed and manufactured in the United Kingdom.

20. API Ammonia 130-Test Freshwater and Saltwater Aquarium Water Test Kit & Nitrate 90-Test Freshwater and Saltwater Aquarium Water Test Kit

By API Store

API Ammonia 130-Test Freshwater and Saltwater Aquarium Water Test Kit & Nitrate 90-Test Freshwater and Saltwater Aquarium Water Test Kit

Product 1: For fresh and Saltwater
Product 1: Monitor ammonia levels
Product 1: Helps prevent Fish loss
Product 2: For fresh and Saltwater
Product 2: Easy to use kit
Product 2: Monitors nitrate level for Fish health

21. API Ammonia 130-Test Freshwater and Saltwater Aquarium Water Test Kit & Ammo-Lock Freshwater and Saltwater Aquarium Ammonia Detoxifier 16-Ounce Bottle

By API Store

API Ammonia 130-Test Freshwater and Saltwater Aquarium Water Test Kit & Ammo-Lock Freshwater and Saltwater Aquarium Ammonia Detoxifier 16-Ounce Bottle

Product 1: For fresh and Saltwater
Product 1: Monitor ammonia levels
Product 1: Helps prevent Fish loss
Product 2: Contains one (1) API AMMO-LOCK Freshwater and Saltwater Aquarium Ammonia Detoxifier 16-Ounce Bottle
Product 2: Detoxifies ammonia in aquarium water and tap water
Product 2: Works instantly to make aquarium water safe for fish
Product 2: Reduction in ammonia levels measurable on any API Test Kits

22. API Ammonia 130-Test Freshwater and Saltwater Aquarium Water Test Kit & Nitrite Test KIT 180-Test Freshwater and Saltwater Aquarium Test Kit

By API Store

API Ammonia 130-Test Freshwater and Saltwater Aquarium Water Test Kit & Nitrite Test KIT 180-Test Freshwater and Saltwater Aquarium Test Kit

Product 1: For fresh and Saltwater
Product 1: Monitor ammonia levels
Product 1: Helps prevent Fish loss
Product 2: Contains one (1) API NITRITE TEST KIT 180-Test Freshwater and Saltwater Aquarium Test Kit, including 1 bottle of testing solution, 1 color card and 1 glass test tube with cap
Product 2: Helps monitor nitrite and prevent invisible water problems that can be harmful to fish
Product 2: Accurately detects high nitrate levels from 0-5 ppm
Product 2: Prevents high levels of nitrite which inhibit fish respiration and suppress their immune systems

23. ORAPXI pH Salinity Tester 5 in 1 pH Salt TDS EC Temp Meter for Hydroponic System Saltwater Pool pH and PPM Meter Water Tester for Indoor Plant Grow, Hot Tub, Spa, Aquarium, Home Brewing

By ORAPXI Store

ORAPXI pH Salinity Tester 5 in 1 pH Salt TDS EC Temp Meter for Hydroponic System Saltwater Pool pH and PPM Meter Water Tester for Indoor Plant Grow, Hot Tub, Spa, Aquarium, Home Brewing

pH TDS EC Meter for Hydroponics- Closely monitor pH and ppm values while growing in plant. Check and adjust pH and EC values in hydroponic nutrient solution to help plant grow. This meter can give accurate readings of water or nutrient solution, keep your planting water pH, TDS and EC right. ORAPXI tester that meets the needs of any serious grower.
pH and PPM Meter- Suitable for monitoring pH PPM levels in plants water, help keep pH and PPM in line and balance feeding and waterings to keep plants happy. Works for pH water system hydroponics, greenhouse reservoir, DWC, aquaponics, drinking water, well water.
Great Tester for Saltwater Pool Owner- Salt range: 0-9900ppm/10.0-100ppt; This device makes quick work of testing pool water for salinity/pH, so that can anticipate the changes in the salt pH levels daily and react accordingly. Perfect for maintaining a saltwater pool spa and hot tub.
5 in 1 pH SALT EC TDS Temp Meter-Test pH SALT EC TDS Temp, get instant and accurate measurement results of liquids. Great for hydroponics, DWC setup, growing of plant, pool, aquarium, drinking water, home tap water, home brewing.
Easy to Use and Read- Clear LCD backlight and instant digital result. Different than strips, this digital tester takes all of the guess work out of the equation. Super easy to read and use with high accuracy.

24. API 5-in-1 Test Strips Freshwater and Saltwater Aquarium Test Strips 25-Count Box & Tetra HT Submersible Aquarium Heater With Electronic Thermostat, 50-Watt

By API Store

API 5-in-1 Test Strips Freshwater and Saltwater Aquarium Test Strips 25-Count Box & Tetra HT Submersible Aquarium Heater With Electronic Thermostat, 50-Watt

Product 1: Contains one (1) API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips 25-Count Box
Product 1: Monitors levels of pH, nitrite, nitrate carbonate and general water hardness in freshwater and saltwater aquariums
Product 1: Dip test strips into aquarium water and check colors for fast and accurate results
Product 1: Helps prevent invisible water problems that can be harmful to fish and cause fish loss
Product 2: All Tetra HT heaters have indicator lights to let you know when the heater is on. It will be red when heating and green when the proper temperature has been reached.
Product 2: The HT10 uses a built in electronic theromstat to automatically maintain water at 78° F which is ideal for most tropical fish. No adjustment is requried.
Product 2: Ideal for aquariums between 2 to 10 gallons with hoods or glass canopies
Product 2: The HT heater is fully submersbile and can be installed vertically or horizontally. It's small footprint makes it easy to conceal behind plants or other décor.

25. POPETPOP 2pcs Water Tank Water Tank Level Control System Fish Tank Water Controller Tool Water Level Controller Aquarium White Aquarium Fish Tank Water Controllers

By Brand: POPETPOP

POPETPOP 2pcs Water Tank Water Tank Level Control System Fish Tank Water Controller Tool Water Level Controller Aquarium White Aquarium Fish Tank Water Controllers

ABS
Auto off for saltwater aquarium-- accurate water level controller, easy installation, practical to use.
Water refill tool-- 【convenient and practical】: use our water refill when you are out and away from home to avoid water shortage in your fish tank, aquarium, tortoise tank or other tanks.
Water level controller-- 【multiple colors】: our water replenisher has three colors: white, green and red. you can choose the right color according to your aquarium style and style.
Aquarium water controller-- 【easy to install】: accurate water level controller, no screws, easy to install, and the water level controller is small in size and does not take up space in the fish tank.
Aquarium reef water filter-- made by material, durable and provide service life.

26. 100 Strips 9 in 1 Aquarium Test Strips+100 Strips Ammonia Test Strips for Aquarium

By FUNSWTM Store

100 Strips 9 in 1 Aquarium Test Strips+100 Strips Ammonia Test Strips for Aquarium

9 IN 1 AQUARIUM TEST KIT FOR HOME: FUNSWTM test strips for fish tank can test most 9 important parameter in water:Iron, pH,copper,Nitrate,Nitrite,total Chlorine,total Hardness, Total alkalinity, Carbonate.
HIGH QUALITY&NON-BLEEDING COLOR:The fish tank test strips are made of high quality PET and Non COLOR BLEEDING pad that provides instant and reliable result. 2 Year lifetime for long time use.
Reliable Ammonia Testing: Accurate and convenient ammonia testing kits for monitoring ammonia levels in your aquarium.
Easy-to-Use: User-friendly ammonia test strips with clear instructions, making it simple to measure ammonia levels in your aquarium.

author img Lucas Carter

Our Editor-in-Chief, Lucas Carter, brings over twenty years of hands-on experience in the world of aquaristics. He is not just an expert in aquarium keeping but also a passionate advocate for the hobby. Lucas's extensive knowledge of aquarium accessories, understanding of different aquatic ecosystems, and a keen eye for product quality set the standard for our reviews. His personal commitment is to guide both novice and experienced aquarium enthusiasts through the vast ocean of products, helping them create the ideal environment for their aquatic friends.