SuperFish Digi Test EC-TDS3-in-1 TDS meter with plug&play function. High performance and fast test results.SuperFish Digi Test EC-TDS. Accurate 3-in-1 TDS meter for. Aquarium and pond water.Measures 3 different values: conductivity (EC), total dissolved solids (TDS) and. Temperature in Celsius (°C) and Fahrenheit (°F).Calibration is not required.The meter has an automatic Temperature compensation function.Automatic shutdown after 5 minutes. UseRemove the protective cap before use.Press the on/off button.Submerge the EC-TDS meter up to the Immersion line into the water. The meter is NOT waterproof, never submerge it beyond the immersion line into the water.The test results are saved automatically after 5-10 Seconds automatically saved. To achieve a better temperature measurement, press CLEAR and repeat the Test. The test results can also be stored by Pressing HOLD to save.Take the meter out of the water, to read the test results.Press the MODE button to toggle between the test modes (ppm, μS/cm, °C and °F).Pressing the CLEAR button will clear the test results are cleared for a new measurement.Wait 30 seconds before starting a new start a new measurement.Wipe the electrode clean, switch off the turn off the meter and replace the protective protective cap back on.Avoid heat and direct sunlight.Care : Keep the electrodes clean and dry. Always close the meter with the protective cap. Please note!  The color change of the display (green/red) has no meaning..

SuperFish Digi Test pHDigital ph meter for aquariums and pond water. This digital meter measures ph with an accuracy of up to 0.02 units, has an automatic calibration function and makes measuring ph much easier.Accurate pH meter for aquariums and. pond water.Measures pH from 0 to 14 with an accuracy of up to 0.02 units.The device features an automatic calibration function for 1-point (6.86) and 2-point calibration (4.00 - 9.18).Calibration powder is included.Automatic power off after 5 minutes.UseRemove the protective cap before use.Press the power button. Submerge the pH meter up to the Immersion line into the water. The meter is NOT waterproof, never immerse the Never immerse the meter beyond the immersion line. beyond the immersion line into the water.Wait about 30 seconds until the reading is numerically constant.Read the pH of the water.Rinse the electrode with distilled water. rinse, dry with a cloth and put the protective cap.Avoid heat and direct sunlight. 1-point calibration 6.68 The calibration accuracy is ± 0.1 pHDissolve the pH 6.86 buffer powder in a beaker with 250 ml of distilled 25°C warm water.Dip the pH measuring instrument into the water with the pH 6.86 solution and wait about 30 seconds.Press and hold the CAL button for 5 seconds.The display will begin to flash 6.86. When it stops flashing, the pH meter has been calibrated.Rinse the electrode with distilled water. rinse with distilled water, dry with a cloth and put the Put on the protective cap. 2-point calibration 4.00 and 9.18 The calibration accuracy is ± 0.02 pHDissolve the pH 4.00 buffer powder in a beaker with 250 ml of distilled 25°C warm water. Dissolve the buffer powder pH 9.18 in another beaker.Dip the pH meter into the water with the pH 4.00 solution and wait about 30 seconds.Press and hold the CAL button for 5 seconds.The display will begin to flash 6.86.Press the CAL button briefly immediately.The display will flash 4.00. Wait until the flashing stops.Rinse the electrode with distilled water. water.Now immerse the pH meter in the Water with the pH 9.18 solution and wait about 30 seconds.Press and hold the CAL button for 5 seconds.On the display begins to flash 6.86.Press the CAL button immediately briefly.On the display flashes 4.00. Press the CAL button again immediately.On the display now flashes 9.18. If it stops stops flashing, the pH meter is calibrated.The electrode with distilled water Rinse with distilled water, dry with a cloth and put the protective cap on.Care: Keep the electrode clean and dry. Always close the meter with the protective cap. Warranty 1 year manufacturer's warranty. Damage due to improper use (battery leakage, water damage) is not covered. Lift the proof of purchase for proof of warranty. for proof of warranty. The warranty will be voided without proof of purchase! The batteries supplied free of charge have a life of one year. If they are empty at the time of the empty, you must replace them yourself. replace them yourself.

Seneye Home - Freshwater Aquarium - Automatically tests multiple life critical parameters temperature - constantly monitors water temperature, so you can get an alert if your heater breaks free ammonia - monitors the highly toxic free ammonia (NH3) at very low levels, so you can stop your fish from dying from Ammonia posioning pH monitoring - the seneye monitors pH in your aquarium or pond water between 6.4 and 9. This range is ideal for most aquatic life and by monitoring this range increased accuracy has be achieved. Total Light - monitor your light levels over the course of the day and know if if your lights fail. water level - readings are only taken when the seneye device is in water, no false readings.   Easy to install, simply drop in Constantly watching your aquarium, 5600 readings per month Customisable alerts, directly to e-mail and SMS * Upload results and get straightforward advice * USB connection with multiple connection options, including optional USB power adaptor *seneye+ required for some features. system requirements Windows PC with internet connectivity running Windows 7, 8, 10 32/64bit - Not compatible with Belkin Base and virtual USB extenders.Full speed USB 1.0 portMinimum 1Ghz processor and 128mb RAMInternet Browser: Internet Explorer 9.0+, Firefox 4.0+, Safari 4.0+Download of seneye connect application required from seneye.com Ever lost a fish and not know why? Ever experience new tank syndrome and wished there was a way of knowing when the water is safe for your fish? With a seneye Home it’s now possible for even the most inexperienced fish keeper to be successful and become an expert. Automatic monitoring with a seneye Home can save fish from the devastating effects of ammonia poisoning, as well as from harmful swings in pH and temperature. The intelligent software can even alert the you before there is a problem, so you can relax and enjoy without having to worry – all this and it’s so simple to use. As the seneye devices are USB there are multiple connection options available. When connected to the Power Adaptor readings are stored every hour and flashing lights on the device indicate if there is a problem. Readings are stored for 35 days and are automatically uploaded once reconnected to a PC.

Seneye Slide - Set 3 months This pack includes 3 slides totalling 3 months seneye+

Webserver LAN and WIFI - Seneye Plug and play The seneye web server with WiFi module removes the need for a pc altogether and allows wireless connection from your seneye device to your router / modem The seneye web server will upload the data from your seneye home, reef, or pond device without the need for a pc in the house. You will then be able to view all your readings from a computer (pc/mac), tablet or smart phone from anywhere in the world via the seneye cloud.  

Seneye Reef - Saltwater Aquarium - Automatically tests multiple life critical parameters Automatically monitors multiple key parameters Constantly watching your aquarium, 5600 readings per month Healthier coral, integrated LUX, Kelvin and PAR light meter Early warning, intelligent software predicts future water conditions* Convenient alerts sent to e-mail and mobile phone* Access results worldwide, data stored online for easy viewing* Track your results with automatic graphing* USB connection with multiple connection options, including optional USB power adaptor *some features require seneye+ Windows PC with internet connectivity running Windows 7, 8, 10 32/64bit - Not compatible with Belkin Base and virtual USB extenders.Full speed USB 1.0 portMinimum 1Ghz processor and 128mb RAMInternet Browser: Internet Explorer 9.0+, Firefox 4.0+, Safari 4.0+Download of seneye connect application required from seneye.com Are your corals not as vibrant as you expect? Have you ever had an aquarium crash unexpectedly? Now with the seneye Reef you can continuously monitor and analyze key life-critical parameters in your saltwater aquarium to ensure that your corals and fish thrive. You can automatically receive alerts before conditions become toxic, giving you time to fix the problem without losing your fish. The integrated PAR, LUX, and Kelvin meter allows you to ensure that your lighting conditions are optimal, so your corals thrive and appear vivid. As the seneye devices are USB there are multiple connection options available. When connected to the Power Adaptor readings are stored every hour and flashing lights on the device indicate if there is a problem. Readings are stored for 35 days and are automatically uploaded once reconnected to a PC. The seneye Reef is also great for planted aquarium keepers! The light meter can help ensure the plants are getting the correct quantity and quality of light.

Seneye Webserver LAN Reliable connection to the seneye cloud  Computerless operation   Plug and play The seneye web server (SWS) allows you to make any seneye device work more efficiently and effectively. It allows you to use a seneye without a PC and view the results direct from your smart phone, tablet, or computer.  This version uses an ethernet connected to your internet router. Once connected you will get instant monitoring, not just across your home, but also the world via the seneye cloud.   To use the SWS outdoors, a seneye Dri box is the simplest way to connect up everything next to the pond. A Wi-Fi module can be added to this product.

JBL ProScan Multi water test with evaluation by means of smartphone app Contains 24 analysis strips ( GH, KH, pH, nitrite, nitrate, chlorine and for the calculation of CO₂) with matching JBL ProScan ColorCard. The colour chart serves as a reference when scanning the analysis strip. The result is evaluated and, where necessary, instructions are displayed to show how to optimize the water values. The appropriate app is available free of charge.

Tetra Test pH Meerwasser Für genaue Messungen des pH-Gehaltes in Meerwasser. hohe Reichweite gute Langzeitstabilität hohe Langzeitstabilität Inhalt: 10 ml

Tetra Test NH3/NH4 Misst zuverlässig und genau den Ammoniakwert Für Süss- und Meerwasseraquarien geeignet hohe Reichweite gute Langzeitstabilität

Tetra Test 6in1  Mit dem Tetra Test 6in1 können Sie in Sekundenschnelle prüfen, ob sich das Aquarienwasser in optimalem Zustand befindet. Schnelle und einfache Überprüfung der Wasserqualität Teststreifen zur Überprüfung von 6 Wasserqualitätsindikatoren in nur 60 Sekunden Ermittelt den pH-Wert, die Karbonat- und Gesamthärte (KH+GH), den Nitrit (NO2)-, Nitrat (NO3)- und Chlor (Cl2)-Gehalt. pH – Der pH-Wert gibt Aufschluss über den für die Gesundheit der Fische wichtigen Säure- bzw. Basengehalt des Wassers. Ideal ist ein pH-Wert zwischen 6,5 und 8,5. KH – Die Karbonathärte sorgt für einen gleich bleibenden pH-Wert. In der Regel wird ein Härtegrad zwischen 3° und 10° dH empfohlen. GH – Die Gesamthärte hat einen direkten Einfluss auf die Gesundheit von Fischen, Pflanzen und Mikroorganismen. Ideal ist ein Wert zwischen 6° und 16° dH. NO2 – Ein gegen null tendierender Nitritgehalt ist ein Hinweis darauf, dass der Filter seine Aufgabe erfüllt und das Wasser unbedenklich für die Fische ist. NO3 – Der Nitratgehalt gibt Aufschluss darüber, wie „frisch“ das Wasser und wie hoch folglich die Wahrscheinlichkeit des Algenwachstums ist. Cl2 – Gibt Aufschluss über den Chlorgehalt des Wassers. Ein zu hoher Wert ist schadet nützlichen Bakterien und Fischen.

JBL pH Test 7.4-9.0 - Quick test to determine the pH values in ponds, freshwater and marine aquariums in the range 7.4-9.0 Easy and reliable monitoring of the water values of aquariums and ponds. Determines the ideal pH value for freshwater and seawater Laboratory comparator system to compensate the inherent water colouring: fill plastic cuvette with sample water, add reagent to another cuvette, place both cuvettes in holder, read values on colour chart When to use: for setting up a new aquarium: daily for one week, afterwards weekly Online Laboratory: regular control for a healthy aquarium/pond with conditions close to nature. JBL has water tests in the form of quick tests or colour change tests for every water analysis. Testing aquarium water for healthy, clear water Package contents: 1 quick test, pH Test 7.4-9.0. Contents for approx. 80 measurements. Incl. reagent, 2 glass vials with screw cap, syringe, dosing spoon and colour scale. Refill reagent available separately Healthy aquarium/healthy pond with conditions close to natureThe right water values are dependent on the fish stock and the plants in the aquarium/pond. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium/pond. To maintain a healthy aquarium/pond with conditions close to nature it is important to check and adapt the water values regularly.For each water analysis JBL provides water tests in the form of quick tests or colour change tests. These determine a certain value or several values in one go. With these water tests you can recognise algae problems and negative nitrate, nitrite, potassium, magnesium values etc.Why test?The well-being of aquarium and pond dwellers and the growth of aquatic plants depend to a large extent on the pH level being kept as constant as possible. The pH level can also affect many substances dissolved in the water. Fluctuations in the pH level are definitely to be avoided.JBL Online LaboratoryRegular control for a healthy aquarium/pond with conditions close to nature. Enter your water values into the JBL Online Laboratory and get an in-depth analysis of your values within seconds.Recommended pH values:Freshwater aquarium (community aquarium): 6.5-7.5Lake Malawi/Lake Tanganyika aquarium: 7.8-9.2Plant aquarium with few fish (aquascaping): 6.0-7.0Marine aquarium: 7.9-8.5Pond: 7.5-8.5

JBL K Potassium Test Set - Quick test to determine the potassium content in freshwater Simple and reliable control of water values. Checks the freshwater aquarium fertilisation by determining the ideal potassium value Quick test: fill cuvette with sample water, add reagents, fill turbid sample water into special glass vial until underlying cross is no longer visible, read filled in quantity. This value is equivalent to the potassium content in mg/l Use with diatom problems Healthy aquariums with conditions close to natureThe right water values are dependent on the fish stock and the plants in the aquarium. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium. To maintain a healthy aquarium with conditions close to nature it is important to check and adapt the water values regularly. For each water analysis JBL provides water tests in the form of quick tests or colour change tests. These determine a certain value or several values in one go. With these water tests you can recognise algae problems and negative nitrate, nitrite, potassium, magnesium values etc. Why test?Potassium is one of the macroelements which plants in freshwater absorb quickly and effectively within a few hours and can also store for a limited time. Growing plants require more potassium than other elements. As a result, potassium concentrations can drop to a minimum range, causing plant growth to stagnate, even if the aquarium water is fertilised regularly. Potassium levels in mains water are usually too low compared to those in natural biotopes, particularly with relation to calcium and magnesium concentrations.

JBL Test Combi Set plus Fe Test case with the most important water tests in freshwater aquariums, incl. iron test Monitors the water values in aquariums simply and reliably. Determines: pH value, carbonate hardness, iron, nitrite, nitrate, CO2 (calculation via table) Easy to use: syringe for exact measurement of the water quantity, detailed instructions for use Laboratory comparator system to compensate the inherent water colouring, analysis record sheet, instructions for problem solving, CO2 table Child-proof reagent bottles, water-proof plastic case, refillable kit Package contents: 1 test case for planted aquariums, 5 reagents, 3 glass vials, syringe, dosing spoon, comparator block, plastic cuvette, colour charts, analysis record sheets, instructions Healthy aquariums with conditions close to nature The right water values are dependent on the fish stock and the plants in the aquarium. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium. To maintain a healthy aquarium with conditions close to nature it is important to check and adapt the water values regularly. With the JBL Test Combi Set you can determine the 5 most important water values in your aquarium. Precise measurement of the following values: pH test: acidity of the water from 3.0 to 10 KH test: pH stability of the water (carbonate hardness) Fe test: iron value to control the fertilisation NO2 test: toxic nitrogen compound NO3 test: reason for algae growth To determine the CO2 content you just need to measure the pH and KH values. From both values arises the CO2 content in the water, which then can be referenced from the enclosed table. You can analyze your measured water values in the JBL Online Laboratory free of charge and receive recommendations.

JBL Oxygen Test O2 - Quick test to determine the oxygen content in fresh and saltwater aquariums and ponds. Easy and reliable monitoring of the water values of aquariums and ponds. Determines the ideal oxygen content in freshwater and seawater Quick test for monitoring the aeration: fill glass vial with sample water, add reagents, read sample value off colour chart When to use: once a week in newly set up aquariums 1 quick test, Oxygen Test O2. Contents for approx. 50 measurements. Incl. 2 reagents, glass vial with screw cap and colour chart. Refill reagents available separately Healthy aquarium/healthy pond with conditions close to natureThe right water values are dependent on the fish stock and the plants in the aquarium/pond. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium/pond. To maintain a healthy aquarium/pond with conditions close to nature it is important to check and adapt the water values regularly. For each water analysis JBL provides water tests in the form of quick tests or colour change tests. These determine a certain value or several values in one go. With these water tests you can recognise algae problems and negative nitrate, nitrite, potassium, magnesium values etc. Why test?The well-being of aquarium and pond dwellers and the growth of aquatic plants depend to a large extent on the O2 level being kept as constant as possible. Oxygen is the “elixir of life” for all animal organisms. All animals in the aquarium and pond need oxygen to breathe. But the “invisible helpers” in the aquarium and pond, the bacteria that break down pollutants, also depend on sufficient supplies of oxygen in order to be able to carry out their useful activities. In aquariums and ponds with little or no planting and in marine aquariums the oxygen content always needs to be kept at an adequate balance using technical equipment. The water absorbs oxygen through the water surface. The more the surface is moving the more oxygen is absorbed. In case of dying algae and during the use of many medications the oxygen content in the water needs to be increased.

Tetra Phosphat-Test Misst zuverlässig und genau den Phosphatwert Für Süss- und Meerwasseraquarien geeignet hohe Reichweite gute Langzeitstabilität

JBL pH Test 3.0-10.0 - Quick test to determine the acidity in ponds as well as in freshwater and marine aquariums Easy and reliable monitoring of the water values of aquariums and ponds. Determines the ideal pH values for freshwater and seawater Quick test: fill plastic vial with sample water, add reagent, read value of the sample off colour chart When to use: for setting up a new aquarium: daily for one week, afterwards weekly 1 quick test, pH Test 3-10 Test for approx. 80 measurements Healthy aquarium/healthy pond with conditions close to natureThe right water values are dependent on the fish stock and the plants in the aquarium/pond. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium/pond. To maintain a healthy aquarium/pond with conditions close to nature it is important to check and adapt the water values regularly. For each water analysis JBL provides water tests in the form of quick tests or colour change tests. These determine a certain value or several values in one go. With these water tests you can recognise algae problems and negative nitrate, nitrite, potassium, magnesium values etc. Why test?The well-being of aquarium and pond dwellers and the growth of aquatic plants depend to a large extent on the pH level being kept as constant as possible. The pH level can also affect many substances dissolved in the water. Fluctuations in the pH level are definitely to be avoided.

Wassertest HI98127 pH/°C-Tester (0,1 pH Auflösung) HI 98127 misst gleichzeitig pH mit 0,1 Auflösung und Temperatur. Er ist einfach zu bedienen, schnell und genau, und eignet sich daher ideal für Routinemessungen. Mit austauschbarer Elektrode. Doppelanzeige von pH & Temperatur Auflösung von 0,1 pH Leicht austauschbare Elektrode Automatische Kalibrierung und Temperaturkompensation  Stabilitätsindikator für sichere Werte HOLD-Funktion zum Festhalten eines Messwertes im Display Batterieladeanzeige und Abschaltautomatik Lieferumfang: Tester inkl. pH-Elektrode, Tool zum Elektrodenaustausch und Batterien. Specifikationen: Messbereich pH -2,0 bis 16,0 pH Messbereich Temperatur -5,0 bis 60,0°C Auflösung pH 0,1 pH Auflösung Temperatur 0,1°C Genauigkeit pH ±0,5 pH Genauigkeit Temperatur ±0,5°C Kalibrierung Automatisch, 2-Punkt, mit 2 gespeicherten PufferserienTemperaturkompensation Automatisch Elektrode HI 73127 (inkl.) Batterien 4 x 1,5V / ca. 300 Betriebsstunden / AbschaltautomatikAbmessungen 163 x 40 x 26 mm Gewicht 100 g

JBL Nitrate Test NO3 - Quick test to determine the nitrate content in fresh and saltwater aquariums and pond Easy and reliable monitoring of the water values of aquariums and ponds Determines the ideal nitrate values to control the algae in freshwater and seawater Laboratory comparator system to compensate the inherent water colouring: fill plastic cuvette with sample water, add reagents to another cuvette, place both cuvettes in holder, read values on colour chart When to use: for setting up a new freshwater aquarium: once a week. For initial setup with marine water: once a week. In case of green algae problems 1 quick test, Nitrate Test NO3. Contents for approx. 50 tests, incl. 2 reagents, 2 glass vials with screw caps, syringe, dosing spoon, comparator block and colour scale. Refill reagents available separately Healthy aquarium/healthy pond with conditions close to natureThe right water values are dependent on the fish stock and the plants in the aquarium/pond. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium/pond. To maintain a healthy aquarium with conditions close to nature it is important to check and adapt the water values regularly. For each water analysis JBL provides water tests in the form of quick tests or colour change tests. These determine a certain value or several values in one go. With these water tests you can recognise algae problems and negative nitrate, nitrite, potassium, magnesium values etc. Why test?Nitrate is the end product of the mineralisation in the aquarium/pond. Even in relatively high concentrations it is non-toxic for fish, but has an adverse effect for plant growth and the well-being of many a fish species. Furthermore too high nitrate contents promote unwanted algae growth if phosphate is present in the water as well as nitrate.

TetraTest Nitrite - NO2 Measures the nitrite value reliably and precisely Suitable for all freshwater and marine aquarium excellent long-term stability for a large number of analyses excellent long-term stability Packaging Units2x10ml  

JBL pH Test 6.0-7.6 - Quick test to determine the pH values in freshwater aquariums in the range 6.0-7.6 Controls the water values in aquariums simply and reliably. Determines the ideal pH value for freshwater aquariums Laboratory comparator system to compensate the inherent water colouring: fill plastic cuvette with sample water, add reagents to another cuvette, place both cuvettes in holder, read values on colour chart When to use: for setting up a new aquarium: daily for one week, afterwards weekly Online Laboratory: regular control for a healthy aquarium with conditions close to nature. JBL has water tests in the form of quick tests or colour change tests for every water analysis. Testing aquarium water for healthy, clear water Package contents: 1 quick test, pH Test 6.0-7.6 for approx. 80 measurements. Incl. reagent, 2 glass vials with screw cap, syringe, dosing spoon, comparator block and colour scale. Refill reagent available separately Healthy aquariums with conditions close to natureThe right water values are dependent on the fish stock and the plants in the aquarium. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium. To maintain a healthy aquarium with conditions close to nature it is important to check and adapt the water values regularly.For each water analysis JBL provides water tests in the form of quick tests or colour change tests. These determine a certain value or several values in one go. With these water tests you can recognise algae problems and negative nitrate, nitrite, potassium, magnesium values etc.Why test?The well-being of the aquarium dwellers and the growth of aquatic plants depend to a large extent on the pH level being kept as constant as possible. The pH level can also affect many substances dissolved in the water. Fluctuations in the pH level are definitely to be avoided.JBL Online LaboratoryRegular control for a healthy aquarium with conditions close to nature. Enter your water values into the JBL Online Laboratory and get a in-depth analysis of your values within seconds.Recommended pH values:Freshwater aquarium (community aquarium): 6.5-7.5Lake Malawi/Lake Tanganyika aquarium: 7.8-9.2Plant aquarium with few fish (aquascaping): 6.0-7.0Marine aquarium: 7.9-8.5Pond: 7.5-8.5

Tetra Test Nitrat - NO3 Measures the nitrate value reliably and precisely Suitable for all freshwater and marine aquarium for a large number of analyses excellent long-term stability Packaging Units1x19 ml + 2x10 ml  

JBL Mg Magnesium Test Set Freshwater - Quick test for quick test to determine the magnesium content in freshwater aquariums Simple and reliable control of the water values in aquariums. Determines the optimal magnesium content to check the fertilisation in freshwater aquariums. Laboratory comparator system to compensate the inherent water colouring: fill plastic cuvette with sample water, add reagents to another cuvette, place cuvettes in holder, read values on colour chart Use in case of problems with plant growth Healthy aquariums with conditions close to natureThe right water values are dependent on the fish stock and the plants in the aquarium. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium. To maintain a healthy aquarium with conditions close to nature it is important to check and adapt the water values regularly. For each water analysis JBL provides water tests in the form of quick tests or colour change tests. These determine a certain value or several values in one go. With these water tests you can recognise algae problems and negative nitrate, nitrite, potassium, magnesium values etc. Why test?Along with calcium, magnesium creates the general hardness. Magnesium is, like potassium, a macroelement, which is necessary for healthy and vigorous plant growth. Tap water very often contains too low quantities of magnesium for aquatic plants, quickly causing deficiency symptoms. Despite a regular fertilisation of the aquarium water it can happen that too low quantities of magnesium are available and the plants stagnate in their growth.

JBL Tray for cuvettes Cal - To keep the cuvettes stable during the calibration The cuvettes, required for the calibration, can be put into this tray to make sure that they are safely fixed Imprints on the surface of the tray help orientation during the calibration The fourth opening holds the electrode Waterproof plastic material This tray for cuvettes and one electrode is already included in JBL ProFlora pH Control Touch Dimensions: 15x15cm, H 2.7cm This stand for cuvettes is very practical during calibration: during calibration the pH electrode is inserted in the cuvette, toget