This product simplifies the process of checking nitrite levels in both fresh and saltwater environments. Nitrite (NO2) is one of the most harmful substances for fish in aquariums and can accumulate in the water when biological filtration is inadequate. The sera NO2-Test allows for effortless and accurate monitoring of nitrite levels in both fresh and marine waters. We suggest utilizing sera bio nitrivec (for freshwater), sera marin bio reefclear (for marine water), or sera pond bio nitrivec (for ponds) if nitrite levels are slightly elevated. For more serious nitrite issues, sera Nitrite-minus offers rapid assistance. This test kit is sufficient for approximately 75 measurements. Instructions for use: Click here

This product is designed to measure the concentration of magnesium in a marine aquarium and includes a spare cartridge for reagent 3. Warning! Reagent 1 contains sodium hydroxide, which can cause serious burns. Keep this reagent securely stored and out of reach of children. Always wear protective gloves when handling. If the substance comes into contact with your eyes, rinse immediately with water and seek medical attention. If you experience nausea, consult a doctor and bring this manual with you. A proper magnesium concentration is essential for the health of marine invertebrates and algae. A prime example is the red calcareous algae, which require substantial amounts of magnesium to form their skeletons. Natural seawater typically has around 1300 mg/l of magnesium. To create optimal conditions in your marine aquarium, it's crucial to maintain this concentration. The Sera magnesium test allows you to quickly and easily assess the magnesium level in your aquarium. You can also effectively boost magnesium levels using Sera magnesium plus. Additionally, magnesium levels can be raised with Sera marin COMPONENT 6 magnesium. The amount of reagent needed will depend on the calcium levels in the water you are testing. Store in a cool, dark place! Instructions for Use: In a marine water aquarium, maintaining an optimal magnesium level is vital for the thriving of invertebrates and decorative algae. Red calcareous algae are a great example, as they require high magnesium levels for their skeletal structure. Natural marine water contains around 1,300 mg/l, which should also be replicated in your aquarium for ideal conditions. The Sera magnesium-Test enables you to monitor your aquarium’s magnesium levels swiftly and efficiently. If you have prior testing experience with the Sera calcium-Test, this will be even easier for you. You can easily enhance the magnesium level in your marine water aquarium by using Sera marin COMPONENT 6 magnesium. Directions for use: Shake the reagent bottles well before use! Avoid letting the tested water come into contact with aquarium or pond water! Rinse the measurement vial several times with the water you wish to test, then empty it. Dry the outside of the vial. Rinse the syringe multiple times with the water to be tested, then use it to fill the vial with 2 ml of this water. Add 6 drops of reagent 1 and shake the vial until the liquid is evenly mixed. Any cloudiness that appears will not affect the test. Add one level measuring spoon (provided in the kit) of reagent 2 to the vial and gently swirl (do not shake) until the powder has dissolved. Gradually add reagent 3 drop by drop while counting them. After every 5 drops, release pressure on the bottle to allow air to enter. Shake the vial after each drop until the color shifts from pink to blue (not violet) and remains stable for at least 30 seconds while you gently whirl the vial occasionally. Note the number of drops used. Empty and thoroughly rinse the measurement vial with tap water, then rinse it several times with the water to be tested and empty it again. Dry the outside of the vial. Use the syringe to take up 2 ml of the water to be tested and fill the vial. Add 6 drops of reagent 4 and shake the vial until the liquid is evenly mixed. Any cloudiness that appears will not affect the test. Add one level measuring spoon (included in the kit) of reagent 5 to the vial and gently swirl (do not shake) until the powder has dissolved. Add reagent 3 drop by drop while counting the drops, releasing pressure on the bottle after every 5 drops to allow air to be drawn in. Shake the vial after each drop until the color changes from red to green and remains stable for at least 30 seconds while whirling the vial occasionally. Note – you will require significantly more drops for this measurement compared to the first measurement! To find the magnesium level, subtract the number of drops used for the first measurement from the number of drops used for the second measurement. Multiply the remaining number of drops by 60 to calculate the magnesium level in mg/l. For example, if the first measurement used 4 drops and the second used 24 drops, subtracting gives you 20 drops. Multiplying 20 drops by 60 results in a magnesium level of 1,200 mg/l. Cleaning: Thoroughly clean the vial and syringe with tap water before and after each test. Close the reagent bottles immediately after use and do not switch caps. Store at room temperature and away from light. This product is intended for testing ornamental fish aquariums and pond water only. Store in a cool, dark place!

This product simplifies the process of tracking ammonium and ammonia levels in both fresh and marine water environments. Ammonium and ammonia primarily originate from fish waste, and they can be interconverted based on the pH level. While ammonium is generally safe, ammonia poses a threat to fish health. The sera NH4/NH3-Test enables you to monitor the overall concentration of both compounds, and you can determine the precise ammonia level using the included chart based on the pH value. In the event of an immediate threat, you can rely on sera toxivec for freshwater or sera pond toxivec for pond environments to provide assistance. Additionally, sera bio nitrivec for freshwater, sera marin bio reefclear for marine water, or sera pond bio nitrivec for ponds actively help to prevent the long-term buildup of these substances. This test kit is sufficient for approximately 60 measurements.

Water Testing for Seasoned Pond Enthusiasts Seasoned pond enthusiasts routinely monitor their pond water. This practice enables them to address issues, such as algae growth, swiftly and effortlessly, without relying on chemicals. The sera Koi aqua-test box includes the following testing kits: pH value Total hardness (GH) Carbonate hardness (KH) Ammonium/Ammonia (NH4/NH3) Nitrite (NO2) Nitrate (NO3) Phosphate (PO4) Iron (Fe) Copper (Cu)

The Sera Glass Precision Thermometer features a detailed scale ranging from 0 to 50 °C. It comes with a high-quality rubber suction cup for secure placement. This thermometer can withstand temperatures between -10 to +60 °C, making it suitable for use in an aquarium, aqua terrarium, paludarium, or terrarium.

A comprehensive testing solution for water quality in koi and garden ponds. Effectively tracks the 10 key water parameters in aquariums, providing simple and dependable results for ponds, well water, and tap water.Expires on 31 Jul 2025

Effortlessly and accurately tracks the water parameters in aquariums, measuring: pH levels, carbonate hardness, CO2 directly, iron, magnesium in freshwater, potassium, phosphate, silicate, and nitrate. Simply add the reagents to the water samples, compare with the color chart, read the values, and consult the analysis sheet for any recommended actions. The comparator system adjusts for the natural coloration of the water (compensating for it). Reagent bottles are childproof, housed in a waterproof plastic case, and additional refill reagents can be purchased separately. Included in the package: 1 testing kit for plant aquariums, featuring 22 reagents, 12 glass vials, 2 syringes, 3 measuring spoons, a thermometer, comparator block, 2 plastic cuvettes, color charts, a pen, report sheets, and operating instructions. Expires on 31 May 2027

Effortless and dependable assessment of ammonium (NH4) and ammonia (NH3) levels in aquariums and ponds. Monitors the biological equilibrium (bacterial activity) in both freshwater and saltwater environments. Utilizes a laboratory comparator system to adjust for the natural color of the water: fill glass vials with your sample, add reagents to one vial, position the vials in the holder, and read the results from the color chart and table. Recommended usage: during the initial setup of a new freshwater aquarium: once daily. For marine water setups: once weekly. Also suitable for monitoring during fish illnesses or fatalities. For comprehensive details and troubleshooting advice regarding water analysis, visit the JBL website under Essentials/Aquarium or Pond. Included in the package: 1 quick test for ammonium NH4, enabling approximately 50 tests. Comes with 3 reagents, 2 glass vials with screw caps, a syringe, a comparator block, and a color scale. Additional reagent refills are available separately.

The temperature of the water plays a crucial role in maintaining the well-being of your fish. The Fluval vertical mount digital thermometer offers precise temperature readings within the range of 18 to 30 degrees Celsius (64 to 86 degrees Fahrenheit).

The Dymax pH Meter provides precise pH measurements for your aquarium water, displaying results with an accuracy of up to two decimal places. Featuring a large LCD screen, you can quickly assess the acidity and alkalinity of your aquarium water with just a glance. Thanks to the included magnetic mounting clamp, the Dymax pH meter can be easily attached to the aquarium glass, making it simple to read. Key Features: Backlit LCD display Operates on battery (suitable for outdoor use) or AC adapter (ideal for indoor use) Accuracy to two decimal points Magnet for securing to glass up to 19mm thick Battery low indicator Sleek design, only 22mm thick Designed for 10 hours of outdoor operation Included in the package: pH Meter Power Adapter pH Probe Magnetic Clamp

Quick assessment tool to measure nitrate levels in freshwater and marine aquariums and ponds. It helps identify the ideal nitrate concentration for thriving plant growth or the potential reasons for algae proliferation in both freshwater and saltwater environments.Expires on 30 Nov 2026

The API® REEF MASTER TEST KIT evaluates four essential parameters – calcium, carbonate hardness, phosphate, and nitrate – to ensure the well-being of your reef inhabitants. The testing process is quick, simple, and precise, providing accurate results. Included are four glass test tubes with secure snap-tight caps and a handy holding container for convenient, reusable storage. Additionally, this kit comes with a comprehensive, step-by-step guide featuring a color chart that helps you identify and rectify unsafe water conditions. We suggest taking a few moments each week to check the conditions of your aquarium, helping to foster a healthier underwater environment for your fish. Monitoring your aquarium water has never been easier or more reliable! The kit includes 7 test solutions, straightforward instructions, 4 glass test tubes, and a color chart.

The API® SALTWATER MASTER TEST KIT evaluates the four critical saltwater parameters – pH, ammonia, nitrite, and nitrate – making it simple to test your aquarium’s natural cycle and support a healthy saltwater environment. The testing process is quick, straightforward, and precise, providing accurate results. This kit comes with four glass test tubes featuring snap-tight caps and a handy storage tub for easy organization. Additionally, it includes a comprehensive step-by-step instruction manual with a color chart that guides you on how to rectify unsafe water conditions. Each SALTWATER MASTER TEST KIT is capable of performing over 550 tests, ensuring you enjoy years of reliable water testing. We suggest spending a few minutes weekly to check your aquarium's conditions, helping you create a more vibrant underwater habitat for your fish. Testing your aquarium water has never been this simple or precise! Includes 550 tests and features 6 test solutions, straightforward instructions, 4 glass test tubes, and a color chart.Expires on 28 Sep 2028

The API® POND MASTER TEST KIT provides a swift and precise way to assess the critical levels in your pond, such as pH, ammonia, nitrite, and phosphate. This product offers more than 500 tests and is designed to be compact for effortless home storage, featuring 6 bottles of liquid test reagents, laminated color charts, 4 glass test tubes, and a comprehensive step-by-step guide. It includes 500 tests and comes with 6 testing solutions, clear instructions, glass test tubes, and a color chart.