{"title":"Tests for Aquariums","description":"","products":[{"product_id":"sera-nitrate-test-no3","title":"Sera Nitrate-Test NO3","description":"\u003cp\u003eMakes it easy to monitor the nitrate level in fresh and marine water\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cp\u003eNitrate (NO\u003csub\u003e3\u003c\/sub\u003e) 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.\u003c\/p\u003e\n\u003cp\u003eSufficient for approx. 60 measurements.\u003c\/p\u003e","brand":"Sera","offers":[{"title":"Default Title","offer_id":42002437308589,"sku":"SE-04510","price":17.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/products\/SE-04510.png?v=1683797853"},{"product_id":"sera-iron-test-fe","title":"Sera Iron-Test (Fe)","description":"\u003cp\u003eMakes it easy to monitor the iron level in fresh and marine water\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cp\u003eIron (Fe) is an important component of plant nutrition. In case the plants have fading leaves this may be due to lacking iron.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eSufficient for approx. 75 measurements.\u003c\/p\u003e","brand":"Sera","offers":[{"title":"Default Title","offer_id":42002438521005,"sku":"SE-04610","price":25.2,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/products\/SE-04610.png?v=1683799101"},{"product_id":"sera-nitrate-test-no2","title":"Sera Nitrate-Test (NO2)","description":"\u003cp\u003eMakes it easy to monitor the nitrite level in fresh and marine water\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cp\u003eNitrite (NO\u003csub\u003e2\u003c\/sub\u003e) is among the most toxic substances for fish in aquariums. It can enrich in the water in case of insufficient biological filtration.\u003c\/p\u003e\n\u003cp\u003eThe sera NO\u003csub\u003e2\u003c\/sub\u003e-Test allows monitoring the nitrite level in fresh and marine water easily and reliably.\u003c\/p\u003e\n\u003cp\u003eWe 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.\u003c\/p\u003e\n\u003cp\u003eSufficient for approx. 75 measurements.\u003c\/p\u003e","brand":"Sera","offers":[{"title":"Default Title","offer_id":42002441371821,"sku":"SE-04410","price":16.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/products\/SE.png?v=1683800168"},{"product_id":"sera-carbon-dioxide-test-co2","title":"Sera Carbon Dioxide-Test (CO2)","description":"\u003cstrong data-mce-fragment=\"1\"\u003ePermanent CO\u003csub data-mce-fragment=\"1\"\u003e2\u003c\/sub\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003emonitoring\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eCO\u003csub data-mce-fragment=\"1\"\u003e2\u003c\/sub\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eis among the most important nutrients for aquatic plants. Deficiencies can therefore have severe consequences.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe sera CO\u003csub data-mce-fragment=\"1\"\u003e2\u003c\/sub\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003elong-term indicator was developed for permanently monitoring the CO\u003csub data-mce-fragment=\"1\"\u003e2\u003c\/sub\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003elevel in the water. The reagent container is easy to hide inside the aquarium, the correct CO\u003csub data-mce-fragment=\"1\"\u003e2\u003c\/sub\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003elevel is easy to read off.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSufficient for approx. 90 fillings.\u003c\/p\u003e","brand":"Sera","offers":[{"title":"Default Title","offer_id":42002445828269,"sku":"SE-04320","price":16.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/products\/SE-04320.png?v=1683795785"},{"product_id":"sera-quick-test-50-pcs","title":"Sera Quick Test 6 in 1 - 50 pcs","description":"\u003cp\u003e\u003cspan\u003eCheck quickly and easily\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cp\u003e\u003cspan\u003eRoutine check or safety check:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith the Quick Test, sera offers the optimal possibility to check the most important water values ​​(pH value, carbonate hardness, total hardness, nitrate, nitrite and chlorine) in the aquarium quickly and easily with just one test strip.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHold a test strip in your pool for one second, then wait 1 minute and compare the intensity of its coloration with the scale on the package.\u003cspan\u003e \u003c\/span\u003eA safe procedure that also helps newcomers to achieve the best possible water quality in their aquariums.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf the measurement shows deviations from the optimal values, the differences can be determined exactly with the sera drop tests.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sera","offers":[{"title":"Default Title","offer_id":42002467389613,"sku":"SE-04960","price":24.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/products\/SE-04960.png?v=1683805135"},{"product_id":"waterlife-broad-range-ph-test-75-tests","title":"Waterlife Broad Range pH Test - 75 Tests","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFeatures\u003c\/strong\u003e:\u003cbr data-mce-fragment=\"1\"\u003eBroad Range pH Test Kit - Measures acidity or alkalinity of water. pH is the measure of acidity or alkalinity of water. pH7 is neutral, above pH 7 is alkaline and below is acid. The Waterlife Broad Range kit a rapid and easy to use test that gives an instant colour reading.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e-  Range covered pH 5 to pH 9.\u003cbr data-mce-fragment=\"1\"\u003e-  Suitable for coldwater and tropical freshwater aquaria.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eSize\u003c\/strong\u003e:\u003cbr data-mce-fragment=\"1\"\u003e75 tests\u003cbr data-mce-fragment=\"1\"\u003e1 x 20ml bottle \u0026amp; vial\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eUsage Guidelines:\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/strong\u003eThe pH can be lowered for acid loving soft water fish using a 6.5 buffer. pH can be adjusted to 7.2 for most community aquarium fish using a 7.2 buffer.\u003c\/span\u003e\u003c\/p\u003e","brand":"WaterLife","offers":[{"title":"Default Title","offer_id":42002651283629,"sku":"WTR-0044","price":17.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/products\/WTR-0044.png?v=1683797662"},{"product_id":"waterlife-ammonia-test-kit-50-tests","title":"Waterlife Ammonia Test Kit - 50 Tests","description":"\u003cp data-mce-fragment=\"1\"\u003eMeasures toxic ammonia\/ammonium, which can cause fish ill health. The Waterlife Ammonia kit is a sensitive liquid test that will give you results within 3 minutes. Range covered 0 – 10mg\/l (ppm).\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSuitable for marine, tropical freshwater and cold-water aquaria.\u003c\/p\u003e","brand":"WaterLife","offers":[{"title":"Default Title","offer_id":42002698305709,"sku":"WTR-0039","price":29.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/products\/WTR-0039.png?v=1683801437"},{"product_id":"waterlife-nitrate-test-kit-tropical-freshwater-marine-50-tests","title":"Waterlife Nitrate Test Kit Tropical Freshwater Marine - 50 Tests","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNitrate Test Kit - Measures nitrate which causes algae growth\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhat is nitrate? – Nitrite is oxidised into Nitrate (chemical symbol NO3) by nitrobacter, filtration bacteria. Excessive levels of nitrate in an aquarium are responsible for poor fish colouration, lehtargy, a failure to breed, and excessive algae growth. In seawater, high nitrates are also responsible for stunted coral growth.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePlease refer to a reference book for specifics.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eThe Waterlife nitrate test gives a colour reading within 6 minutes, indicating nitrate levels.\u003cbr data-mce-fragment=\"1\"\u003eRange covered 0 to 200 mg\/l.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhat to do should a reading occur?\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eCheck you are not overfeeding. Carry out an immediate 25% partial water change, (using Waterlife Haloex) to dilute the nitrate.\u003cbr data-mce-fragment=\"1\"\u003eAdd more live plants. In freshwater, nitrate can be removed with Waterlife's Nitraway.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSuitable for marine, tropical freshwater and coldwater aquaria.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAvailable in:\u003cbr data-mce-fragment=\"1\"\u003e50 tests\u003cbr data-mce-fragment=\"1\"\u003eContains: 1 x ampul, 3 x 20ml bottles \u0026amp; vial\u003c\/p\u003e","brand":"WaterLife","offers":[{"title":"Default Title","offer_id":42002717212845,"sku":"WTR-0041","price":19.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/products\/WTR-0041.png?v=1683795300"},{"product_id":"sera-aqua-test-set","title":"Sera Aqua Test Set","description":"\u003cp\u003e\u003cspan\u003e\u003cspan class=\"goog-text-highlight\"\u003eGet to know your water\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cp\u003e\u003cspan\u003eOnly those who know their water parameters can react at an early stage and counteract irregularities to protect animals and plants.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith the sera aqua-test set, the important parameters for freshwater and seawater – pH value, carbonate hardness (KH), total hardness (GH) and nitrite (NO\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003csub\u003e\u003cspan\u003e2\u003c\/span\u003e\u003c\/sub\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e) – can be determined.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDetailed instructions for use are included with each test.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sera","offers":[{"title":"Default Title","offer_id":42005022867629,"sku":"SE-04000","price":47.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/products\/SE-04000.png?v=1683802398"},{"product_id":"dennerle-water-test-6in1-50-test-strips","title":"Dennerle Water Test 6in1 - 50 Test Strips","description":"\u003cspan data-mce-fragment=\"1\"\u003eRapid test with 50 dipsticks for the 6 most important water values:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• pH-value\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• carbonate hardness (KH)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• total hardness (GH)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• Nitrite (NO₂),\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• Nitrate (NO₃),\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• Chlorine (CL₂)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eYou will be able to read off test results\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ewithin 60 seconds.\u003c\/span\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":47667732742487,"sku":"4001615016833","price":18.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/WATERTESTKIT.png?v=1708337133"},{"product_id":"aquamedic-ph-control-set","title":"AquaMedic Ph Control Set","description":"\u003cdiv class=\"product-details\" id=\"nasa-single-product-tabs\"\u003e\n\u003cdiv class=\"nasa-tabs-content woocommerce-tabs\"\u003e\n\u003cdiv class=\"nasa-panels nasa-desc-wrap\"\u003e\n\u003cdiv class=\"nasa-panel nasa-content-description active\" id=\"nasa-tab-description\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"large-12 columns nasa-content-panel\"\u003e\n\u003cp\u003e\u003cb\u003etechnical Data Aqua Medic pH Controller\u003c\/b\u003e\u003cbr\u003edigital pH monitor and controller\u003cbr\u003efor freshwater and marine water\u003cbr\u003eDisplay: 0.5″ LED, 3-1\/2 digits\u003cbr\u003eMeasuring range: pH 0 – 14\u003cbr\u003eResolution: 0.01 pH\u003cbr\u003eAccuracy: +\/- 0.01 pH (+ 1 digit) after calibration\u003cbr\u003eRelay contact: 5 amps. at 100 – 240 V\u003cbr\u003eWorking temperature: 0 – 50° C\u003cbr\u003eHumidity: below 80%\u003cbr\u003eControl range: pH 3.5 to pH 10.5, digitally adjustable\u003cbr\u003eControl accuracy: +\/- 0.05 pH (+ 1 digit)\u003cbr\u003ePower connection: 100 – 240 V, 50\/60 Hz, if not stated otherwise\u003cbr\u003eDimensions: 150 x 85 x 40 mm\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e","brand":"aqua medic","offers":[{"title":"Default Title","offer_id":48236975063383,"sku":"4025901100259","price":375.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/phcontrolset.jpg?v=1716112769"},{"product_id":"aqua-medic-refractometer-led","title":"Aqua Medic Refractometer LED","description":"\u003cp\u003eThe \u003cstrong\u003erefractometer\u003c\/strong\u003e is a precision optical instrument used to determine the salt concentration in saltwater aquaria. Its exact value can be determined in seconds and can be read either as absolute salt concentration (‰, ppt) or as specific density. When a beam of light enters the refractometer it is bent or “refracted” by the water in the test panel. This refraction is proportional to the salinity of the sample and can be directly read by viewing the internal scale. The integrated \u003cstrong\u003eLED illumination\u003c\/strong\u003e provides good readability even in poor lighting conditions.\u003c\/p\u003e\n\u003cp\u003eIncluded in shipment: refractometer, a pipette for the water sample, a screw driver for calibration, desalinated water, LED display and a strong plastic box.\u003c\/p\u003e\n\u003c!----\u003e","brand":"aqua medic","offers":[{"title":"Default Title","offer_id":48497191125335,"sku":"4025901140378","price":62.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/refractometer.png?v=1716976420"},{"product_id":"duplamarin-aerometer-glass-cylinder","title":"DuplaMarin Aerometer Glass Cylinder","description":"\u003cp\u003e\u003cspan\u003eGlass cylinder 500 ml, facilitates taking a reading of the isometer.\u003c\/span\u003e\u003c\/p\u003e","brand":"Hobby","offers":[{"title":"Default Title","offer_id":48992689258839,"sku":"HBB-0231","price":42.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/duplamarin-aerometer-glass-cylinder.jpg?v=1726909087"},{"product_id":"precision-aerometer-36cm","title":"Precision Aerometer 36cm","description":"\u003cp\u003e\u003cspan\u003eFor accurate density measurement. With salinity-temperature conversion table built into the glass housing. Measurement range: 1.021 to 1.026. Maximum. deviation +\/- 0.0002g \/ ml.\u003c\/span\u003e\u003c\/p\u003e","brand":"Hobby","offers":[{"title":"Default Title","offer_id":49492277821783,"sku":"HBB-0339","price":72.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/Screenshot_2024-11-12_160816.png?v=1731488186"},{"product_id":"salifert-nitrate-profitest-kit","title":"Salifert Nitrate ProfiTest Kit","description":"\u003cp\u003e\u003cstrong\u003eSalifert Nitrate ProfiTest Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProvides very fast and precise measurement of the nitrate levels in saltwater aquariums, and unlike other test kits does not suffer from amine interference which can affect the results.\u003c\/p\u003e\n\u003cp\u003ePerforms approximately 60 tests.\u003c\/p\u003e","brand":"de jong","offers":[{"title":"Default Title","offer_id":49871114273111,"sku":"8714079130385","price":16.5,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/no3-profil-test.jpg?v=1737707033"},{"product_id":"salifert-ph-salt-test-kit-50pcs","title":"Salifert PH Salt Test Kit 50pcs","description":"\u003cp\u003eThe pH value in a marine\u003cspan\u003e \u003c\/span\u003etank\u003cspan\u003e \u003c\/span\u003ehas a major impact on the growth of corals and calcareous algae and on many biological processes.\u003c\/p\u003e\n\u003cp\u003eThe pH should not be allowed to fluctuate more than approx. 0.2 units during any 24 hour period and should preferably be kept above 8.2. If the pH is too low then the cause may be a too low alkalinity and\/or a build up of carbon dioxide caused by insufficient aeration A low pH can be corrected by improving aeration and by increasing the alkalinity.\u003c\/p\u003e\n\u003cp\u003eThe Salifert Test Kit is sufficiently accurate to monitor minor pH fluctuations and is scaled from pH 7.4–8.7. Sufficient for 50 tests. For marine water only.\u003c\/p\u003e","brand":"de jong","offers":[{"title":"Default Title","offer_id":49871145992535,"sku":"8714079130491","price":12.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/ph-profi-salifert.jpg?v=1737795408"},{"product_id":"salifert-calcium-test-50-100pcs","title":"Salifert Calcium Test 50-100pcs","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\"\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eThe calcium test kit provides for accurate calcium levels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eThe calcium test kit can perform up to 100 tests\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eThe calcium tests is capable in resolving calcium contents\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"de jong","offers":[{"title":"Default Title","offer_id":49871170470231,"sku":"8714079130347","price":12.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/SALIFERT-CALCIUM-TEST.jpg?v=1737795412"},{"product_id":"salifert-magnesium-tests-50pcs","title":"Salifert Magnesium Tests 50pcs","description":"\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMagnesium is present in natural sea water in a fairly high concentration (1350 - 1500 mg\/L) and is an essential element of chlorophyll which is necessary for photosynthesis\u003c\/strong\u003e. Without photosynthesis plants, algae and coral would not be able to survive.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMagnesium also \u003cstrong\u003ehelps to maintain the correct combination of calcium concentration and alkalinity\u003c\/strong\u003e as it slows down the formation of calcium carbonate which can absorb many important trace elements within the aquarium.\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMaintaining a \u003cstrong\u003ecorrect magnesium concentration is therefore very important and is indirectly responsible for fast coral and calcareous algae growth\u003c\/strong\u003e by making it possible to maintain correct calcium and alkalinity figures.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"de jong","offers":[{"title":"Default Title","offer_id":49871294234967,"sku":"8714079130422","price":16.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/download_a2dfb4a0-3d3c-467d-ab04-cb0ba80a4c41.jpg?v=1737795386"},{"product_id":"af-testpro-pack-ca-mg-kh","title":"AF TestPro Pack Ca Mg KH","description":"\u003cp\u003eAquaforest TestPro kits provide fast and accurate testing for key aquarium parameters. TestPro Ca measures calcium (380–460 mg\/L, 55–65 tests), TestPro KH measures carbonate hardness (6.5–8 dKH, 78–100 tests), and TestPro Magnesium ensures proper magnesium levels (1260–1460 mg\/L, 55–60 tests). Essential for maintaining stable and healthy conditions in marine and freshwater aquariums.\u003c\/p\u003e","brand":"Aqua Forest","offers":[{"title":"Default Title","offer_id":51911086670167,"sku":"5902026733304","price":38.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/Screenshot2025-10-15123109.png?v=1760605138"},{"product_id":"tds-ec-temperature-meter","title":"TDS \/ EC \/ Temperature Meter","description":"\u003cp\u003eThe \u003cstrong data-start=\"157\" data-end=\"196\"\u003eTDS-EC-T 3-in-1 Water Quality Meter\u003c\/strong\u003e provides fast and accurate readings of Total Dissolved Solids (TDS), Electrical Conductivity (EC), and Temperature, helping you assess water purity and hardness with confidence. Designed for home, laboratory, aquarium, hydroponic, or industrial use, it offers a wide measuring range of 0–9999 ppm for TDS and 0–9999 μS\/cm for EC. The built-in temperature sensor measures from 0 to 99 ℃ (32–212 ℉), ensuring reliable results in various environments. Compact, durable, and easy to use, it is an essential tool for anyone who values precise water quality control. Accuracy ±2%.\u003c\/p\u003e","brand":"Markospets","offers":[{"title":"Default Title","offer_id":52157031579991,"sku":"MK1","price":25.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/Screenshot2025-11-13125130.png?v=1763110583"},{"product_id":"colombo-aqua-testlab-pro","title":"Colombo Aqua TestLab Pro","description":"\u003cp\u003eThe \u003cstrong data-start=\"154\" data-end=\"216\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eColombo\u003c\/span\u003e\u003c\/span\u003e TestLab Professional\u003c\/strong\u003e is an essential water testing kit for every aquarium enthusiast. It accurately measures 7 key water parameters, helping ensure optimal conditions for fish and plants. Each drop test is easy to use and delivers fast, reliable results. With up to 40 tests per parameter, the kit allows a total of 280 complete analyses. Supplied in a durable case with test tubes, syringes, and a colour chart, it makes routine water monitoring simple for both beginners and experienced aquarists.\u003c\/p\u003e","brand":"Mouzouras","offers":[{"title":"Default Title","offer_id":52595686244695,"sku":"8715897319594","price":90.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/Screenshot2026-01-21125943.png?v=1769072200"},{"product_id":"colombo-flora-ferro-test","title":"Colombo Flora Ferro Test","description":"\u003cp\u003eProfessional drop test designed for precise measurement of iron levels in aquarium water, ensuring optimal fertilisation for healthy plant growth. The adapted measuring range allows accurate readings, while the clear visual instructions, included test tubes, and accessories make testing quick and easy. Measuring range: Iron 0.05–0.75 mg\/L.\u003c\/p\u003e","brand":"Mouzouras","offers":[{"title":"Default Title","offer_id":52595694862679,"sku":"AS010510","price":24.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/Screenshot2026-01-21145309.png?v=1769072225"},{"product_id":"nc02-test-15ml","title":"NC02 Test 15ml","description":"\u003cp\u003eLiquid refill solution for glass CO₂ indicators, designed to accurately assess CO₂ concentration in aquariums. Simply add 15 drops of the liquid to the glass indicator to monitor CO₂ levels through clear colour changes: blue indicates too little CO₂, green shows the optimal level of 30 mg\/L (ppm), and yellow signals excessive CO₂ concentration. For best accuracy and performance, use with the \u003cstrong data-start=\"512\" data-end=\"573\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eAqua Nova\u003c\/span\u003e\u003c\/span\u003e CO₂ glass indicator\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Mouzouras","offers":[{"title":"Default Title","offer_id":52595701973335,"sku":"5903031443943","price":9.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/files\/Screenshot2026-01-21145612.png?v=1769072212"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7261\/3293\/collections\/WTR-0039.png?v=1681128471","url":"https:\/\/www.markospets.com\/collections\/tests-for-aquariums.oembed?page=2","provider":"Markospets","version":"1.0","type":"link"}