It is the most suitable water thermometer for natural aquariums. The features of the white back type are easy to read degrees, and it is very compatible with frameless fish tanks such as ultra-clear glass square fish tanks. It can be easily placed on...

Colombo 6-in-1 quicktest made in the Netherlands. Easy 6 in 1 Quick Quiz Paper Can quickly grasp ph, kh, gh, no2, no3, cl2 data in water 1 minute test to water quality

GEX Thermometer SS W4.5 x D1.8 x H13 cm / 7 g GEX Thermometer S W4.5 x D1.8 x H16.5cm / 10g It's a clear and compact design that's perfect for compact aquariums and doesn't interfere with the layout. The most popular blue!

COLOMBO Freshwater pH Tester Test range pH6.0~8.5 Made in the Netherlands usage 1. Take a 5 ml water sample 2. Add 5 drops of pH-test solution 3. Shake the test tube 4. Use the included chromatogram to determine the pH

When raising freshwater fish and plants, the general hardness (GH) and carbonate hardness (KH) of the aquarium water should match their natural habitat. API® GH & KH Test Kits help you replicate your fish's natural habitat to prevent stress and keep them healthy! size...

COLOMBO Freshwater GH Test Agent usage 1. Take a 5 ml water sample 2. Add 5 drops of GH-1 3. Shake the test tube 4. Drop GH-2 until discolored. 1 drop = 1DH

Nitrite is produced in the aquarium in the form of fish waste, uneaten food, and nitrifying bacteria that break down ammonia in the aquarium's natural cycle. Low levels of nitrite can suppress breathing and suppress the immune system, while high levels can cause fish...

Product introduction: Make sure the test tube is clean before use. Clean the tube immediately after use. Take the volume of the water sample as accurately as possible. Keep the dropper bottle dripping completely vertically. Note that the droplets do not contain air bubbles....

Phosphate (PO₄) test Professional drop test for precise determination of PO4 - phosphate levels in freshwater aquariums. Test range is 0.0 – 5 mg/l. Convenient visual instructions and included test tubes make testing easy. Enough to test phosphate levels 40 times. Phosphate (PO₄) test...