The API® KH TEST KIT tests fresh or saltwater aquariums for carbonate hardness (KH), and helps monitor water quality and prevent invisible water problems that can be harmful to fish and plants. Carbonate hardness stabilizes aquarium pH, and can be used to determine the proper dose of pH buffers. Contains 1 test bottle, easy-to-ready instructions, glass test tube and color chart.Best Before Guarantee: 30/04/2029

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

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

Use the API® pH TEST STRIPS as a quick and accurate way to test pH levels in your water. These test strips measure a wide range of pH, from 6.0 to 9.0 ppm, to help you keep aquarium conditions safe for your fish. Product comes with desiccant-lined tube with snap-tight cap, highly precise color chart for accurate water parameter readings, and information on how to correct unsafe water conditions. For use in fresh and saltwater aquariums. Size: 25 pcs per box.Best Before Guarantee: 31/01/2026

The API® SALTWATER MASTER TEST KIT measures the 4 most important saltwater parameters – pH, ammonia, nitrite, and nitrate – to enable easy testing of your tank’s natural cycle, and to aid in maintaining a thriving saltwater aquarium. Testing is fast, easy, and accurate, yielding precise results, and comes with 4 glass test tubes with snap-tight caps and a convenient holding tub for easy storage. This kit also includes a complete, step-by-step instructional booklet with a color chart that provides information on how to correct unsafe water conditions. Each SALTWATER MASTER TEST KIT will conduct 550+ tests, so you can get the most out of your kit for years of fast, accurate water testing. We recommend that you take a few minutes each week to monitor your aquarium conditions and create a better underwater world for your fish.Testing your aquarium water has never been so easy or accurate! Contains 550 tests and includes 6 test solutions, easy-to-ready instructions, 4 glass test tubes and color chart.Best Before Guarantee: 28/05/2027

Nitrite is produced in the aquarium in the forms of fish waste, uneaten food, and by nitrifying bacteria in your aquarium’s natural cycle as it breaks down ammonia. Low levels of nitrite inhibit respiration and suppress the immune system, while high levels cause suffocation in fish. The API® NITRITE TEST KIT reads nitrite levels quickly and accurately in your tank, and tests parameters from 0 to 5 ppm. Contains 180 tests and includes 1 test solution, easy-to-ready instructions, glass test tube and color chart.Best Before Guarantee: 31/05/2027

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

Makes it easy to monitor the nitrate level in fresh and marine water Nitrate (NO3) is an indicator for severe organic pollution. The source of this organic pollution should be eliminated, a partial water change provides immediate help. In the long run, filtering through sera siporax Professional helps avoiding nitrate enrichment. Sufficient for approx. 60 measurements. Information for use:  https://www.sera.de/fileadmin/user_upload/manuals/sourcefiles/42994_42995_42996_-INT-_sera-nitrat-test_05-2018.pdf

It is used to determine the concentration of magnesium (magnesium) in a marine aquarium Attention! Reagent 1 contains sodium hydroxide. Causes severe burns. Keep Regent locked up and out of reach of children. Wear protective gloves when working. If it gets into the eyes, wash them immediately with water, consult a doctor. In case of any nausea, seek medical help and take this manual with you An optimal concentration of magnesium is needed for marine invertebrates and algae. A perfect example is red calcareous algae. These consume large amounts of magnesium to build their skeleton. Natural seawater contains approximately 1300 mg/l. If we want to achieve optimal conditions in the marine aquarium, this concentration must be observed. You can conveniently and quickly determine the concentration of magnesium in a marine aquarium using the Sera magnesium test. The concentration of magnesium can be conveniently increased in the marine aquarium with sera magnesium plus. The magnesium level can be increased with sera marin COMPONENT 6 magnesium. Reagent consumption depends on the calcium level of the checked water. Instructions for use: US Information for use An optimal magnesium level is required in a marine water aquarium in order for invertebrates and ornamental algae to thrive. Calcareous red algae are a perfect example. These ornamental algae require particularly much magnesium, as they integrate this element into their skeleton. Natural marine water contains about 1,300 mg/l. This level should also be maintained in an optimal marine water aquarium. The sera magnesium-Test allows you to monitor the magnesium level in your aquarium quickly and easily. It is even easier if you have gathered testing experience by using the sera calcium-Test. You can easily increase the magnesium level in your marine water aquarium by adding sera marin COMPONENT 6 magnesium. Directions for use: Shake reagent bottles well before using! Do not allow tested water to contact aquarium or pond water!  1. Rinse the measurement vial several times with the water to be tested, then empty the vial. Dry the vial on the outside.  2. Rinse the syringe several times with the water to be tested, then fill 2 ml of it into the vial, using the syringe.  3. Add 6 drops reagent 1 and shake the vial until the liquid is evenly distributed. Possibly occurring cloudiness does not affect the test.  4. Add one level measurement spoon (included with the kit) reagent 2 into the vial and gently whirl the vial (do not shake) until the powder has dissolved.  5. Add reagent 3 drop by drop while counting the drops, release the reagent bottle from finger pressure after every 5 drops, allowing air to be drawn into the bottle. Shake vial after every drop until the color turns from pink into blue (not violet) and remains stable for at least 30 seconds whilst whirling the vial occasionally. Write down the number of drops used. 6. Empty the measurement vial, rinse it carefully with tap water and then several times with the water to be tested, then empty the vial. Dry the vial on the outside. 7. Take up 2 ml of the water to be tested into the syringe and fill it into the vial.  8. Add 6 drops reagent 4 and shake the vial until the liquid is evenly distributed. Possibly occurring cloudiness does not affect the test.  9. Add one level measurement spoon (included with the kit) reagent 5 into the vial and gently whirl the vial (do not shake) until the powder has dissolved.  10. Add reagent 3 drop by drop while counting the drops, release the reagent bottle from finger pressure after every 5 drops, allowing air to be drawn into the bottle. Shake vial after every drop until the color turns from red into green and remains stable for at least 30 seconds whilst whirling the vial occasionally. Attention – you will need considerably more drops for this measurement than for the first measurement!  11. Subtract the number of drops required for the first measurement from the result of the second measurement. Multiply the remaining number of drops by 60 to get the magnesium level in mg/l. Example: The first measurement required 4 drops, the second measurement 24 drops. If you subtract the first measurement result from the second one, 20 drops will remain. 20 drops multiplied by 60 makes 1,200 mg/l magnesium.  12. Cleaning: Clean vial and syringe thoroughly with tap water before and after each test. Close reagent bottles immediately after use and do not exchange caps. Store at room temperature and away from light. For testing ornamental fish aquariums and pond water only.   Store in a cool and dark place!

Boyu Magnetic Cleaner With Thermometer [WD-Series] Magnetic Scraper Boyu WD-Series is designed to clean the glass (up to 12 mm) of the aquarium without damaging the glass. Equipped with a digital thermometer to determine the temperature anywhere in the aquarium.  When separated from the outer part, the submersible part floats to make it easier to remove from the aquarium. Sizes: S : 10.4x4.3x6.2cm M : 11.4x4.7x6.8cm L :  12.85x5.3x7.4cm

Boyu Magnetic Cleaner With Thermometer [WD-Series] Magnetic Scraper Boyu WD-Series is designed to clean the glass (up to 12 mm) of the aquarium without damaging the glass. Equipped with a digital thermometer to determine the temperature anywhere in the aquarium.  When separated from the outer part, the submersible part floats to make it easier to remove from the aquarium. Sizes: S : 10.4x4.3x6.2cm M : 11.4x4.7x6.8cm L :  12.85x5.3x7.4cm

Wireless with integrated probe for easy use. Small and compact, the appearance is very delicate. Ideal for both fresh and saltwater aquarium fish tank. Completely sealed and never leakage. Imported from India. Wireless with integrated probe for easy use, Small and compact,the appearance is very delicate, Ideal for both fresh andsaltwater aquarium fish tank. Completely sealed and neverleakage

Boyu Magnetic Cleaner With Thermometer [WD-Series] Magnetic Scraper Boyu WD-Series is designed to clean the glass (up to 12 mm) of the aquarium without damaging the glass. Equipped with a digital thermometer to determine the temperature anywhere in the aquarium.  When separated from the outer part, the submersible part floats to make it easier to remove from the aquarium. Sizes: S : 10.4x4.3x6.2cm M : 11.4x4.7x6.8cm L :  12.85x5.3x7.4cm

Makes it easy to monitor the carbonate hardness in fresh and salt wateFor approx. 390°dKH. In case of too low KH values we recommend sera KH/pH-plus (in freshwater) or sera pond bio balance (in ponds), in case of too high values we recommend filtering through sera super peat (in freshwater aquariums).

From the latest generation of aquarium and terrarium thermometers. The sera digital thermometer conquers with the brightness of its liquid crystal display. It measures temperatures between 18 and 34 °C precisely. Temperature ranges: 1 brown: trend up 2 green: current temperature 3 blue: trend down  

EHEIM pHcontrol+e – the smart controller for monitoring and readjusting the pH value in your aquariumWith the EHEIM pHcontrol+e you can easily monitor and optimize the pH in your aquarium via a smartphone, tablet, or PC/MAC simply via a WiFi connection and your web browser. A pH sensor measures the current pH value of the water, and the pHcontrol+e automatically provides the necessary CO2 supply. By controlling the magnetic valve connected in series to the CO2 system it adds as much CO2 as required until the desired pH value is reached.To achieve this you must connect your CO2 system, i.e., a CO2 bottle via pressure reducer as well as magnetic valve (see the EHEIM CO2 sets) and a CO2 diffuser. The pHcontrol+e has a day/night control and can be linked to the lighting control EHEIM LEDcontrol+e (see the EHEIM DIGITAL family).In addition to light, nitrogen, phosphate, trace elements, etc., the plants in your aquarium need CO2 above all as an important nutrient. The better they thrive, the more oxygen they release, which the fish need to breathe. Thus, the EHEIM pHcontrol+e indirectly provides oxygen and the optimal pH value for your fish by adding CO2. This is usually between pH 6 and pH 8; pH 7 is considered a neutral value for reference.Note:The basis for measuring and stabilising the pH value is the carbonate hardness ("KH") of the water. Therefore, the EHEIM pHcontrol+e (in Smart mode) initially queries the KH value. Because KH, CO2 and pH value influence each other.Features of the EHEIM pHcontrol+eA smart controller for monitoring and controlling the pH value in the aquarium by regulating the addition of CO2.Includes Wireless WiFi connection with a WLAN-enabled end device (smartphone, tablet, PC/MAC).Has connection and compatibility with devices of the EHEIM DIGITAL family.Measures the pH value through the pH sensor (measuring range: pH 0 to pH 14).Control range of the controller pH 6 to pH 9.Needs to be coupled via pressure reducer with CO2 bottle (EHEIM CO2 set).Electronically controls addition of CO2 through interposed magnetic valve.Adjusts CO2 addition by linking with LEDcontrol+e (day/night control) in smart mode or simple and extended bio mode with own day/night control.Queries the KH value (carbonate hardness) in advance.Sets water test and calibration reminders.Guided calibrations of the pH sensor.Sends warning for deviation of pH value (up/down).Notes if EHEIM pH sensor needs to be replaced.Provides best performance, high power, stable connection, and large memory capacity through new improved chip generationHighest safety and reliability - 3 years warranty

Makes it easy to monitor the iron level in fresh and marine water Iron (Fe) is an important component of plant nutrition. In case the plants have fading leaves this may be due to lacking iron. The sera Fe-Test provides quick information about possible deficiencies. Directed fertilization with sera florena or sera florenette immediately counteracts the deficiency. Detection of chelatized (stabilized) iron is possible. Sufficient for approx. 75 measurements.