Take 5-10ml of the sample, and take the supernatant for testing after standing. Nitrate nitrate test range 0~240. Nitrate Nitrite. Too high or too low PH is not good for fish growth. If the pH value is less than 4.4, the fish mortality rate can reach 7% to 20%.
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Ph-98218 Digital Skin PH Acidimeter Tester PH Tester Repalceable Probe ATC Meter with LCD Diaplay for Meat Fruit Cosmetic
Aliexpress UK
Compare Free Chlorine, pH and Total Alkalinity pads (in that order) to colour chart on label.
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High Accurancy Soil PH Tester Soil Moisture/PH/Temperature Sunlight Intensity Testers Garden Planting Soil Detector Soil PH Test
Aliexpress UK
Johnson Universal Indicator Paper Reel 5m x 7mm Test paper Ph 1 - 14. Johnson Test Papers Universal Indicator Paper pH 1 - 14. pH range of : 1-2-3-4-5-6-7-8-9-10-12-14. • Colour chart included.
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7 in 1 PH TDS EC ORP Salinity S.G TEMP Meter Digital PH Tester C-600 Water Quality Tester for Drinking Water Aquariums PH Meter
Aliexpress UK
Take 5-10ml of the sample, and take the supernatant for testing after standing. Nitrate nitrate test range 0~240. Nitrate Nitrite. Too high or too low PH is not good for fish growth. If the pH value is less than 4.4, the fish mortality rate can reach 7% to 20%.
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Water Quality Tester HM COM-300 EC TDS PH 4 in 1 Meter PH-200 PH Meter Waterproof ORP Tester With ATC Calibration And Data Hold
Aliexpress UK
Simply dip the test paper into water for 2 seconds, keep it in the air for 15 seconds, then compare the color on the test paper with the color card on the container. 1 bottle of test paper (50pcs/100pcs).
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Food Dough PH Meter LCD Backlight PH Tester Accuracy Acidity Tester Temp PH Detector for Soil Cosmetic Cheese Meat Fruit
Aliexpress UK
Simple to use & caneasily compared to the provided colour chart so you know exactly which chemicals to add to your hot tub water. Alkalinity: Between 0-180ppm. Bromine: Between 0-20ppm. Chlorine: Between 0-10ppm.
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50pcs 3 In 1 Test Strips Chlorine Dip Hot Tub PH Tester Paper Multipurpose Swimming Pool Hot Spring SPA Water Test Strips
Aliexpress UK
Easy to test: Total Chlorine, Free Chlorine/Bromine, pH, Total Alkalinity, Total Hardness, Cyanuric Acid. Test range for total alkalinity: 0 ~ 240 ppm. Total chlorine test range: 0 ~ 10 ppm. Free chlorine test range: 0 ~ 10ppm.
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New 2 in 1 PH Chlorine Meter Chlorine Tester PH Tester Chlorine Water Quality Tester CL2 Measuring For Swimming Pool Aquarium
Aliexpress UK
Total chlorine 2. Free chlorine 3. Bromine 4. Total alkalinity 6. Cyanuric acid 7. Total hardness. 3in can test: 1. Total Chlorine2.PH3.Total Alkalinity.
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New Soil pH Meter 3/4 in 1 PH Light Moisture Acidity Tester Soil Tester Moisture Meter Plant Soil Tester Kit for Flowers
Aliexpress UK