Copper is an effective solution for various parasitic infections but requires careful monitoring in aquariums or ponds. The concentration of copper can decrease to ineffective levels or rise to a range that could harm fish health. Additionally, copper may already be found in your tap water. The API® COPPER TEST KIT enables you to conveniently and accurately track copper concentrations, ensuring that copper-based treatments for fish remain at optimal therapeutic levels. This kit measures copper levels from 0 to 4 ppm and is suitable for both fresh and saltwater aquariums, as well as ponds. This kit includes 90 tests and comes with 1 test bottle, straightforward instructions, a glass test tube, and a color chart.Expires on 30 Nov 2027

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 30 Jan 2028

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.

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.

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

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 30 Dec 2027

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.

Facilitates easy monitoring of oxygen levels in freshwater Rapid breathing at the water's surface is a clear indication of low oxygen levels. Sadly, by this time, it might already be too late to take the necessary steps. The sera O2-Test checks the current oxygen concentration in your water within moments, enabling timely action. The sera O2 plus offers an immediate oxygen boost. Enough for approximately 60 tests. Usage Information www.sera.de/fileadmin/user_upload/manuals/sourcefiles/04914_sera_O2-Test_2015-06_INT.pdf

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

Helps you easily keep track of nitrate levels in both fresh and saltwater Nitrate (NO3) serves as a key indicator of significant organic pollution. It's crucial to address the source of this pollution, and performing a partial water change can offer immediate relief. Over time, using sera siporax Professional can help prevent nitrate build-up. Enough for approximately 60 measurements. Usage Information:  https://www.sera.de/fileadmin/user_upload/manuals/sourcefiles/42994_42995_42996_-INT-_sera-nitrat-test_05-2018.pdf

This product is designed to measure the magnesium concentration in a marine aquarium. Warning! Reagent 1 contains sodium hydroxide, which can cause severe burns. Ensure that the reagent is stored securely out of children's reach. Always wear protective gloves while handling. If it contacts your eyes, rinse immediately with water and seek medical attention. If you experience any nausea, consult a doctor and bring this manual with you. A proper magnesium concentration is essential for the health of marine invertebrates and algae, such as red calcareous algae, which utilize significant amounts of magnesium to form their skeletons. Natural seawater typically has a magnesium concentration of around 1300 mg/l. To maintain optimal conditions in your marine aquarium, this level must be achieved. The Sera magnesium test provides a quick and easy way to measure magnesium concentration in your aquarium. You can also easily increase magnesium levels using Sera magnesium plus. Boost magnesium levels with Sera Marin COMPONENT 6 magnesium. The amount of reagent used will depend on the calcium level in the water being tested. How to Use: Instructions for use Maintaining an optimal magnesium level in a marine aquarium is crucial for the well-being of invertebrates and decorative algae. For instance, red calcareous algae require a substantial amount of magnesium for their skeletal structure. The natural concentration in marine water is approximately 1,300 mg/l, which should also be replicated in your aquarium. The Sera magnesium test enables you to quickly and easily check the magnesium levels. If you have prior testing experience with the Sera calcium test, this process will be even simpler. You can effortlessly enhance the magnesium levels in your marine aquarium by adding Sera Marin COMPONENT 6 magnesium. Usage Instructions: Shake the reagent bottles thoroughly before use! Avoid contact between the tested water and the aquarium or pond water!  1. Rinse the measurement vial several times with the water you wish to test, then discard the water. Dry the outside of the vial.  2. Rinse the syringe multiple times with the water to be tested, then draw 2 ml into the syringe and transfer it into the vial. 3. Add 6 drops of reagent 1 and shake the vial until the mixture is uniform. Any cloudiness that appears will not impact the results. 4. Introduce one level scoop (included in the kit) of reagent 2 into the vial and gently swirl (do not shake) until the powder is fully dissolved. 5. Gradually add reagent 3 drop by drop, counting each drop. Release 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 pink to blue (not violet) and remains stable for at least 30 seconds while gently swirling the vial. Record the number of drops used. 6. Discard the contents of 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 outside of the vial. 7. Use the syringe to take up 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 occurs will not affect the test.  9. Introduce one level scoop (included in the kit) of reagent 5 into the vial and gently swirl (do not shake) until the powder is fully dissolved. 10. Add reagent 3 drop by drop, counting each drop. Release 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 red to green and remains stable for at least 30 seconds while occasionally swirling the vial. Note – you will require significantly more drops for this measurement than for the initial one! 11. To determine the magnesium level, subtract the number of drops used in the first measurement from the total used in the second measurement. Multiply the remaining number of drops by 60 to convert it to mg/l. For example, if the first measurement needed 4 drops and the second needed 24, subtracting gives you 20 drops. Multiplying 20 drops by 60 results in 1,200 mg/l magnesium. 12. Cleaning: Rinse the vial and syringe thoroughly with tap water before and after each test. Immediately close the reagent bottles after use and do not swap caps. Store them at room temperature and away from light. This product is intended for testing ornamental fish aquariums and pond water only. Keep in a cool, dark place!

Boyu Magnetic Cleaner With Thermometer [WD-Series] The Boyu WD-Series Magnetic Scraper is expertly crafted to effortlessly clean aquarium glass (up to 12 mm) without causing any scratches. It features a built-in digital thermometer, allowing you to monitor the temperature throughout the aquarium. When the inner part is detached from the exterior, it floats, making it simple to retrieve from the tank. Available sizes: S : 10.4x4.3x6.2cm M : 11.4x4.7x6.8cm L : 12.85x5.3x7.4cm

Boyu Magnetic Cleaner With Thermometer [WD-Series] The Boyu WD-Series Magnetic Scraper is expertly crafted to clean aquarium glass (up to 12 mm thick) without causing any damage. It features a built-in digital thermometer that allows you to monitor the temperature throughout your aquarium effortlessly. When detached from the outer section, the submerged part floats, making it simple to retrieve from the tank. Available Sizes: S : 10.4x4.3x6.2cm M : 11.4x4.7x6.8cm L : 12.85x5.3x7.4cm