Makes it easy to monitor the nitrite level in fresh and marine water Nitrite (NO2) is among the most toxic substances for fish in aquariums. It can enrich in the water in case of insufficient biological filtration. The sera NO2-Test allows monitoring the nitrite level in fresh and marine water easily and reliably. We recommend using sera bio nitrivec (freshwater), sera marin bio reefclear (marine water) or sera pond bio nitrivec (pond) in case of slightly elevated nitrite levels. In case of severe nitrite problems, sera Nitrite-minus quickly provide help. Sufficient for approx. 75 measurements. Information for use:  https://www.sera.de/fileadmin/user_upload/manuals/sourcefiles/42990_42991_42992_-INT-_sera-nitrit-test_05-2018.pdf

Used to determine the concentration of magnesium (magnesium) in a marine aquarium reagent 3 spare cartridge 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. Store in a cool and dark place! 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!

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

KW Zone Reptiles Digital Thermometer (Blister Card)

For the uncomplicated monitoring of marine water density The salinity (salt contents) can be deduced from the measured density. Since the salinity of marine water in an aquarium must be kept constant, the aquarium water should regularly be checked accordingly. The water to be tested is filled into a sufficiently tall water glass, and the scale of the immersed hydrometer is read off on according to its immersion depth.

Water testing for experienced pond keepers Experienced pond keepers check their pond water regularly. This allows taking measures, for instance against algae, quickly and easily, without the need to use chemicals. The sera Koi aqua-test box contains the following test kits: pH value total hardness (GH) carbonate hardness (KH) ammonium/ammonia (NH4/NH3) nitrite (NO2) nitrate (NO3) phosphate (PO4) iron (Fe) and copper (Cu)  

Quick and easy monitoring Routine monitoring or safety check: The sera Quick Test provides the optimal possibility to check the most important water parameters (pH value, carbonate hardness, total hardness, nitrate, nitrite and chlorine) in the aquarium with just one test strip quickly and without any problems. Immerse a test strip in your tank for a second, then wait for 1 minute and compare the intensity of its colors to the chart on the package. A safe procedure that also supports beginners achieve best possible water quality in their aquariums. In case the measurement reveals deviations from the optimal levels, the sera liquid tests allow determining the differences exactly. Information for use https://www.sera.de/fileadmin/user_upload/manuals/sourcefiles/04960_sera_Quick-Test_2015-06_INT.pdf https://www.sera.de/fileadmin/user_upload/manuals/sourcefiles/4001942049603_45227_-INT-_sera-quick-test-6in1.pdf

PH Pentester PH-01 1.5V x4 battery power (Included) 175mm x 37mm x 37mm Light-weight 85g Accuracy to 0.1pH Super Large LCD display Waterproof Class IP67 Replaceable Electrode Extremely portable

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

For the safe stabilization of water values ​​- it prevents fluctuations in the pH value For gentle and reliable increase of carbonate and total hardness Increasing and stabilizing the pH value It reliably prevents dangerous pH fluctuations ("acid shock") Natural processes inside the lake, as well as downpours, strongly influence the carbonate hardness and pH value. Which can lead to life-threatening pH fluctuations. sera pond bio balance increases the carbonate hardness as well as the total hardness in a natural and gentle way and therefore stabilizes the pH value in the long term. sera pond bio balance ensures a balanced supply of minerals, reduces stress and optimizes the living conditions for fish and plants. Water care 1. Stabilize the water 2. Water condition 3. Create a balance 4. Activate the filter medium Sera bio balance Sera KOI PROTECT Sera bio nitrivec Sera filter biostart Optimize water parameters 1. Stabilize the water 2. Remove pollutants 3. Supply oxygen 4. Prevent cloudiness Sera bio balance Sera toxivec Sera O 2  plus Sera bio humin

calibration is a simple procedure for optimal performance and should be done any time your readings become suspect. Calibration should be performed at least once a month.M10007 is a lab grade pH 7.01 calibration solution certified to meet the standard with an accuracy of ±0.01 pH removing the inaccuracies involved with mixing solutions from powder.Sachet packaging means that you get fresh solution every time. Ideal for infrequent or field use. No risk of using an expired calibration solution. Milwaukee solutions are designed to help you achieve reliable and repeatable pH measurements while extending the life of your electrode.Fundamental for the correct use of electrodes and for obtaining the most accurate and reproducible readingsSealed against light and airIdeal for on-the-spot calibrationSimply open, insert the tester or electrode into the sachet and calibrateFormulated with a 5 year expiryColor coded for easy identification

Makes it easy to monitor the pH value in fresh and marine water and ponds. For approx. 100 measurements In case of too low pH values we recommend sera KH/pH-plus (in freshwater aquariums) or sera pond bio balance (in ponds), in case of too high values in freshwater aquariums we recommend sera pH/KH-minus or filtering through sera super peat. Information for use https://www.sera.de/fileadmin/user_upload/manuals/sourcefiles/42982_42983_42984_-INT-_sera-ph-test_05-2018.pdf 

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

Only the pHsensor and the calibration liquid are included in the scope of delivery!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

pH TESTING METHOD   1. Take 3 ml of Test solution.   2. Add 2 drops of indicator solution to it and mix.  3. The colour forms is compared with the given colour chart   pH  O.O ->  Red  to  10.0 -> Dark Violet 250 Test

sera gH-Test FRESH WATER , PONDWATER TESTINGCAREMakes it easy to monitor the total hardnessFor approx. 420°dGH. In case of too low GH values we recommend sera mineral salt. High total hardness levels can be lowered by mixing in R/O water. For creating soft water we recommend adding sera blackwater aquatan or filtering through sera super peat. Directions for use: Shake reagent bottle 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 fill to the 5 ml mark. Dry the vial on the outside. 2. Add reagent drop by drop. Shake vial gently after every drop, until the color changes from red via brown to green. 3. The number of drops used from the reagent represents the existing total hardness (in °dGH). E.g., 5 drops = 5°dGH. 4. Cleaning: Clean the vial thoroughly with tap water before and after each test. Close reagent bottle immediately after use. Store at room temperature and away from light. Keep locked up and out of the reach of children. For testing ornamental fish aquariums and pond water only.  US Information for use Most ornamental fish originate from countries where the soil is poor in minerals. However, it is exactly the opposite in many other areas around the world. Rain water dissolves calcium and magnesium from the soil and consequently creates hard water. With the sera gH-Test, you can quickly determine the exact total hardness. Looking at the natural conditions helps selecting the optimal fish stock for a community aquarium, and is a precondition for successful breeding. High total hardness levels can be lowered by mixing in R/O water. A combination of sera aquatan and sera blackwater aquatan or filtering through sera super peat will create soft water, as required for most South American fish (e.g. from the Amazon basin). 

BT-01 thermometer is easy to read and has a safety zone indicator for most tropical fish. BT-01 thermometer is equipped with suction cups to stick to the aquarium at all times. Wireless with an 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. It gives an accurate result. With this device, you can immediately find out what is bothering your fish, intervene in the situation, and save their lives. BOYU Series: AQUATIC FISH Colour: White Material: Polyester 100 percent Brand new and high quality Made by glass Slim, elegant design Product Length (in cm):15 Product Breadth (in cm):7 Product Height (in cm):3 Weight (in kg):0.1

Automatic digital pH value control for CO2 operation Operations like CO2 addition to the water depend on the pH value and, correspondingly, can easily be controlled and regulated via the pH value. The seramic pH Controller monitors the pH value of the aquarium water and controls a connected CO2 fertilization system according to the adjusted parameters. To do so, the unit to be controlled is connected to the seramic pH Controller by means of a socket, the desired pH ranges are set and then independently and reliably controlled and regulated by the seramic pH Controller. The solenoid valve included in the kit can be connected to common CO2 systems and regulates CO2 addition depending on the pH value. The kit consists of: digital seramic pH Controller with power connection and external plug solenoid valve sera pH electrode 2 suction cups and universal holder universal holder plate sera test solution pH 4.0 (with safety color indicator “red”) 100 ml (3.38 fl.oz.) sera test solution pH 7.0 (with safety color indicator “green”) 100 ml (3.38 fl.oz.) 3 m (3.3 yd.) CO2 hose 4/6 non-return valve information for use Tip: The seramic pH Controller is also suited for operating calcium reactors and dosage pumps.

Only the pHcontrol+e and power supply unit are included in the scope of delivery!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