API® 5-IN-1 TEST STRIPS offer a fast and convenient solution for assessing the five most critical parameters of your aquarium water – pH, KH, GH, nitrate, and nitrite – all in one simple step. Just immerse one test strip into the aquarium and match the resulting colors on the strip to the color chart included to help identify unseen water issues that could be detrimental to your fish. Each package comes with comprehensive instructions on how to read the test results and address any unsafe water conditions. Size: 25 strips per boxExpires on 28 Jul 2026

The Ammonia Alert is a groundbreaking color-changing device designed to continuously detect and monitor harmful free ammonia levels. The sensor shifts color from yellow to green to blue, depending on the concentration of ammonia present. There’s no need for test kits, chemicals, or complicated procedures. KEY FEATURES: Utilizes Seachem sensor technology Continuously measures and monitors free ammonia No requirement for test kits, chemicals, or procedures; provides constant readings Durable for over a year Suitable for both marine and freshwater environments Expires on 30 Apr 2026

The Alert Combo pack features both Ammonia Alert (1 card) and pH Alert® (1 card). These alerts are nearly half the size of similar products on the market. Measuring 1.5" x 2.5", they are compact, transparent, and discreet, ensuring they won't obstruct the beauty of your aquarium. Just position Ammonia Alert and pH Alert in a visible spot within your aquarium or filter. It’s that simple. No need for chemicals or complicated testing methods.

The API® POND WIDE RANGE pH TEST KIT provides a fast and precise way to measure the pH levels of your pond water, helping to mitigate the detrimental effects that can arise from water being too alkaline or too acidic. These imbalances may occur due to minerals in tap water, elevated ammonia levels, rain runoff, or excessive fish stocking in the pond. This product measures pH levels ranging from 5.0 to 9.0. It includes 160 tests and comes with a test bottle, straightforward instructions, a glass test tube, and a color chart for easy reference.Expires on 28 Feb 2027

Nitrite forms in your aquarium from fish excrement, leftover food, and the action of nitrifying bacteria during the natural process of ammonia breakdown. When present in low concentrations, nitrite can hinder respiration and weaken the immune system, while elevated levels can lead to fish suffocation. The API® NITRITE TEST KIT provides a fast and precise measurement of nitrite levels in your aquarium, assessing values from 0 to 5 ppm. This kit contains 180 tests and comes with 1 test solution, straightforward instructions, a glass test tube, and a color chart.Expires on 28 Mar 2028

The API® FRESHWATER MASTER TEST KIT offers a fast and precise way to check the four essential parameters in freshwater aquariums: pH, high range pH, ammonia, nitrite, and nitrate. Designed for professional-grade accuracy, this reusable FRESHWATER MASTER TEST KIT includes 4 glass test tubes with secure snap-tight caps and a handy holding tub for effortless storage. It also comes with a detailed instruction booklet featuring a color chart that guides you in correcting unsafe water conditions. We suggest you dedicate a few minutes each week to check the conditions of your aquarium, helping to create a healthier and more vibrant underwater environment for your fish. Monitoring your aquarium water has never been simpler or more reliable! This kit provides 800 tests and comes complete with 7 test solutions, easy-to-follow instructions, 4 glass test tubes, and a color chart.Expires on 31 Mar 2028

Elevated nitrate levels in your aquarium signal an accumulation of fish waste and organic matter, which can lead to subpar water quality and a surge in algae growth. In contrast, maintaining low nitrate levels fosters a healthier environment for both fish and invertebrates. Utilize the API® NITRATE TEST KIT to verify that the nitrate levels in your aquarium are safe and conducive to the well-being of your fish. The NITRATE TEST KIT measures levels from 0 to 160 ppm and is suitable for both freshwater and saltwater tanks. It includes 90 tests along with 2 testing solutions, straightforward instructions, a glass test tube, and a color chart.Expires on 28 May 2029

Phosphate can find its way into your aquarium through various sources such as tap water, fish droppings, and decomposing materials like leftover food and dead algae. An excess of phosphate can lead to unwanted algae growth and green water blooms, and in saltwater environments, high phosphate levels can hinder the development of hard corals. The API® PHOSPHATE TEST KIT measures phosphate concentrations ranging from 0 to 10 ppm, enabling you to effectively keep track of your aquarium's water quality. It is suitable for use in both freshwater and saltwater aquariums. This kit includes 150 tests along with 2 testing solutions, straightforward instructions, a glass test tube, and 2 color charts for your convenience.Expires on 28 Feb 2028

Calcium is a crucial component in a reef aquarium. Invertebrates found in reefs, including corals, crustaceans, mollusks, and certain types of encrusting algae, require calcium for their growth and overall well-being. As time passes, the calcium concentration can decrease due to consumption by invertebrates or its reaction with excess phosphate. The API® CALCIUM TEST KIT is designed to measure calcium levels as low as 20 mg/L, ensuring the health of your reef ecosystem. This kit includes 2 testing bottles, straightforward instructions, and a glass test tube.Expires on 28 Apr 2027

The API® AMMONIA TEST KIT is designed to monitor ammonia levels, which is crucial for preventing the loss of fish, as ammonia is the primary cause of stress and fatalities among tropical fish. Ammonia is produced in an aquarium from sources such as leftover food, decomposing organic matter, and excretions from fish, including gill releases, urine, and solid waste. This mercury-free API AMMONIA TEST KIT utilizes a salicylate method for both freshwater and saltwater fish, measuring ammonia concentrations ranging from 0 to 8 ppm. It includes 130 tests, two test solutions, straightforward instructions, a glass test tube, and two color charts for easy interpretation.Expires on 31 Mar 2030

Utilize the API® AMMONIA TEST STRIPS for a fast and precise method to detect ammonia levels. This kit measures ammonia from 0 to 6 ppm and notifies you of hazardous ammonia concentrations before they pose a threat to your fish or lead to their loss. Quantity: 25 pieces per boxExpires on 28 Aug 2026

The API® 5-IN-1 TEST STRIPS offer a fast and convenient method to assess the five key parameters of your aquarium water – pH, KH, GH, nitrate, and nitrite – all in a single step. Just immerse one test strip into the aquarium, then match the colors on the strip with the color chart included to identify any hidden water issues that may harm your fish. Each package contains comprehensive instructions on how to read the test results and how to rectify any unsafe water conditions. Size: 4 pieces per boxExpires on 31 Jan 2027

Usage Instructions 1. Submerge the strip for 1 second before removing it; gently shake off any excess water. 2. Match the strip to the color chart and read the result right away. Important Warnings 1. If the water sample has any color, please decolorize it until it is colorless before testing. 2. If the buffer solution appears weak, insert the test strip and wait until its color stabilizes. 3. Avoid getting wet fingers inside the bottle, do not touch or contaminate the test area of the strips, and minimize the test strips' exposure to air. 4. Keep in a cool, dry, and dark location. 5. It is advisable to use the product as soon as possible after opening.

Sera Glass Precision Thermometer delicate scale ranging from 0 to 50 °C. high-quality rubber suction cup the thermometer withstands temperatures from -10 to +60 °C. suitable for use in an aquarium, aqua terrarium, paludarium, or terrarium

DIGITAL THERMOMETER 1. Press the screen for 1 second to toggle between °C & °F 2. Alarm will sound if the temperature exceeds 33°C 3. Temperature sensor located at the back, with an accuracy of ±0.5 degrees 4. Battery replacement instructions: Step 1: Use a paper clip or a SIM-eject tool to press into the hole next to the tray. Step 2: Slide out the tray and replace the battery. Model:  TH 015 Battery Details: CR2032/3V Temperature measurement range: 0-50°C/0-122°F Temperature measurement accuracy: ±0.5°C Temperature display resolution: 0.1°C

Dophin Thermometer for Terrarium and Reptiles The Dophin thermometer offers a convenient solution for monitoring temperatures in reptile terrariums, easily attaching to glass surfaces and providing readings in degrees Fahrenheit. Simple and accurate temperature readings. Effortless to read and install with a self-adhesive backing. Measures temperatures ranging from -20 to 40 degrees Fahrenheit, covering a total range of 0 to 110 degrees. Square-shaped reptile thermometer, measuring 5 x 5 cm. To use, simply peel off the tape on the back, press it into a clean and dry spot in the terrarium, and hold it for a brief moment to secure it. Ensure the surface is clean and dry for optimal adhesion.

 

Facilitates easy monitoring of nitrite levels in both freshwater and marine environments Nitrite (NO2) ranks among the most harmful substances for fish in aquariums. It can accumulate in the water if biological filtration is inadequate. The sera NO2-Test provides a straightforward and dependable way to check nitrite levels in both fresh and saltwater. For slightly elevated nitrite readings, we suggest using sera bio nitrivec (for freshwater), sera marin bio reefclear (for marine water), or sera pond bio nitrivec (for ponds). If nitrite levels are critically high, sera Nitrite-minus offers rapid assistance. Enough for approximately 75 measurements. Usage Information:  https://www.sera.de/fileadmin/user_upload/manuals/sourcefiles/42990_42991_42992_-INT-_sera-nitrit-test_05-2018.pdf

Designed to assess the magnesium concentration in a marine aquarium reagent 3 spare cartridge Caution! Reagent 1 contains sodium hydroxide, which can cause serious burns. Keep this reagent securely stored and out of children's reach. Always wear protective gloves during use. If it comes into contact with your eyes, rinse immediately with water and seek medical advice. If you experience any nausea, please consult a doctor and bring this manual with you. A balanced magnesium concentration is essential for the health of marine invertebrates and algae. A prime example of this is red calcareous algae, which require significant amounts of magnesium to form their skeletons. Natural seawater typically has around 1300 mg/l. To create optimal conditions in your marine aquarium, this concentration should be maintained. You can quickly and easily determine the magnesium levels in your marine aquarium using the Sera magnesium test. For those looking to boost magnesium levels, Sera magnesium plus provides a convenient solution. You can enhance the magnesium concentration with Sera Marin COMPONENT 6 magnesium. The amount of reagent used will depend on the calcium levels of the water being tested. Store in a cool and dark environment! Usage Instructions: To maintain a healthy environment for invertebrates and ornamental algae in a marine aquarium, it's crucial to have an optimal magnesium level. Calcareous red algae exemplify this, as they require substantial magnesium for their skeletal structure. Natural marine water contains approximately 1,300 mg/l, which should also be upheld in a well-managed marine aquarium. The Sera magnesium test enables you to efficiently monitor the magnesium concentration in your aquarium. If you have prior experience with the Sera calcium test, this will make the process even simpler. You can effectively raise the magnesium levels in your marine aquarium by adding Sera Marin COMPONENT 6 magnesium. Instructions for use: Shake the reagent bottles thoroughly before use! Avoid allowing the tested water to come into contact with aquarium or pond water!  1. Rinse the measurement vial several times with the water you intend to test, then empty it. Wipe the outside of the vial dry.  2. Rinse the syringe several times with the water to be tested, then draw 2 ml into the vial using the syringe. 3. Add 6 drops of reagent 1 and shake the vial until the liquid is uniformly mixed. Any cloudiness that forms will not impact the test results. 4. Introduce one level measurement spoon (included in the kit) of reagent 2 into the vial and gently swirl the vial (do not shake) until the powder is completely dissolved. 5. Add reagent 3 drop by drop while counting the drops, releasing pressure on the reagent bottle after every 5 drops to allow air to enter. Shake the vial after each drop until the color changes from pink to blue (not violet) and remains stable for at least 30 seconds while occasionally swirling the vial. Take note of the total number of drops used. 6. Empty the measurement vial, rinse it thoroughly with tap water, and then rinse it several times with the water to be tested before emptying it again. Dry the vial's exterior. 7. Fill the syringe with 2 ml of the water to be tested and transfer it into the vial.  8. 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.  9. Add one level measurement spoon (included in the kit) of reagent 5 into the vial and gently swirl the vial (do not shake) until the powder is fully dissolved. 10. Introduce reagent 3 drop by drop while counting the drops, releasing pressure on the reagent bottle after every 5 drops to allow air to enter. Shake the vial after each drop until the color shifts from red to green and remains stable for at least 30 seconds while gently swirling the vial. Note – you will require significantly more drops for this measurement than in the first measurement! 11. To determine the magnesium level, subtract the number of drops used in the first measurement from the second measurement. Multiply the remaining number of drops by 60 to convert to 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 1,200 mg/l of magnesium. 12. Cleaning: Rinse the vial and syringe thoroughly with tap water before and after each test. Immediately close reagent bottles after use and do not interchange caps. Store at room temperature and away from light. For use in ornamental fish aquariums and pond water only. Store in a cool and dark environment!