Shop for Water Testing

This in-tank meter rapidly warns you of water quality changes.

Effortlessly monitor vital aquarium pH and ammonia levels nonstopEasy-to-use tests simplify maintaining proper aquarium water qualityLow-cost alternative to high-tech aquarium monitors and testing equipmentSimple and innovative aquarium testers continuously monitor vital water parameters for aquarium peace of mind. LivepH test meter monitors aquarium pH and LiveNH3 test meter monitors toxic ammonia, nonstop, for a full month Monitoring aquarium water quality is now easier than ever. Familiar test-strip technology is combined with a patented protective membrane for "real-time" test results at a glance. Features an integrated color reference block for effortless comparison. NEW LiveMeter Master Test Kit measures water temperature, pH, and ammonia for up to 6 weeks. Extremely easy-to-use meters suction-mount inside your aquarium. For freshwater aquariums.Please click on "More Information" for directions for use.

Effortlessly monitor vital aquarium pH and ammonia levels nonstopEasy-to-use tests simplify maintaining proper aquarium water qualityLow-cost alternative to high-tech aquarium monitors and testing equipmentSimple and innovative aquarium testers continuously monitor vital water parameters for aquarium peace of mind. LivepH test meter monitors aquarium pH and LiveNH3 test meter monitors toxic ammonia, nonstop, for a full month Monitoring aquarium water quality is now easier than ever. Familiar test-strip technology is combined with a patented protective membrane for "real-time" test results at a glance. Features an integrated color reference block for effortless comparison. NEW LiveMeter Master Test Kit measures water temperature, pH, and ammonia for up to 6 weeks. Extremely easy-to-use meters suction-mount inside your aquarium. For freshwater aquariums.Please click on "More Information" for directions for use.

Effortlessly monitor vital aquarium pH and ammonia levels nonstopEasy-to-use tests simplify maintaining proper aquarium water qualityLow-cost alternative to high-tech aquarium monitors and testing equipmentSimple and innovative aquarium testers continuously monitor vital water parameters for aquarium peace of mind. LivepH test meter monitors aquarium pH and LiveNH3 test meter monitors toxic ammonia, nonstop, for a full month Monitoring aquarium water quality is now easier than ever. Familiar test-strip technology is combined with a patented protective membrane for "real-time" test results at a glance. Features an integrated color reference block for effortless comparison. NEW LiveMeter Master Test Kit measures water temperature, pH, and ammonia for up to 6 weeks. Extremely easy-to-use meters suction-mount inside your aquarium. For freshwater aquariums.Please click on "More Information" for directions for use.

Effortlessly monitor vital aquarium pH and ammonia levels nonstopEasy-to-use tests simplify maintaining proper aquarium water qualityLow-cost alternative to high-tech aquarium monitors and testing equipmentSimple and innovative aquarium testers continuously monitor vital water parameters for aquarium peace of mind. LivepH test meter monitors aquarium pH and LiveNH3 test meter monitors toxic ammonia, nonstop, for a full month Monitoring aquarium water quality is now easier than ever. Familiar test-strip technology is combined with a patented protective membrane for "real-time" test results at a glance. Features an integrated color reference block for effortless comparison. NEW LiveMeter Master Test Kit measures water temperature, pH, and ammonia for up to 6 weeks. Extremely easy-to-use meters suction-mount inside your aquarium. For freshwater aquariums.Please click on "More Information" for directions for use.

Effortlessly monitor vital aquarium pH and ammonia levels nonstopEasy-to-use tests simplify maintaining proper aquarium water qualityLow-cost alternative to high-tech aquarium monitors and testing equipmentSimple and innovative aquarium testers continuously monitor vital water parameters for aquarium peace of mind. LivepH test meter monitors aquarium pH and LiveNH3 test meter monitors toxic ammonia, nonstop, for a full month Monitoring aquarium water quality is now easier than ever. Familiar test-strip technology is combined with a patented protective membrane for "real-time" test results at a glance. Features an integrated color reference block for effortless comparison. NEW LiveMeter Master Test Kit measures water temperature, pH, and ammonia for up to 6 weeks. Extremely easy-to-use meters suction-mount inside your aquarium. For freshwater aquariums.Please click on "More Information" for directions for use.

Effortlessly monitor vital aquarium pH and ammonia levels nonstopEasy-to-use tests simplify maintaining proper aquarium water qualityLow-cost alternative to high-tech aquarium monitors and testing equipmentSimple and innovative aquarium testers continuously monitor vital water parameters for aquarium peace of mind. LivepH test meter monitors aquarium pH and LiveNH3 test meter monitors toxic ammonia, nonstop, for a full month Monitoring aquarium water quality is now easier than ever. Familiar test-strip technology is combined with a patented protective membrane for "real-time" test results at a glance. Features an integrated color reference block for effortless comparison. NEW LiveMeter Master Test Kit measures water temperature, pH, and ammonia for up to 6 weeks. Extremely easy-to-use meters suction-mount inside your aquarium. For freshwater aquariums.Please click on "More Information" for directions for use.

Tests marine magnesium levels with 20 ppm accuracyMagnesium helps you keep proper calcium, alkalinity, and pH levelsEssential test kit for reef aquariums-->Marine aquarium titration test for magnesium - accurate to 20 ppm. In addition to biological functions, magnesium helps maintain proper calcium levels to prevent a drop in alkalinity and sudden drops in pH. Includes full instructions, test tube, and easy-read color scale. Magnesium plays an important role in the marine aquarium, as it is used by most animals along with calcium in construction of skeletons and shells. It also helps prevent the excess precipitation of calcium and bicarbonate, which lowers both the calcium level and causes a drop in alkalinity. A low alkalinity leaves the aquarium vulnerable to sudden drops in pH, which can be fatal to aquarium inhabitants. It is important, therefore, to ensure that magnesium is maintained at the correct level, according to the salinity of the aquarium.Magnesium should be maintained at about 3 times the level of calcium in ppm.Please click on "More Information" for instructions.

5-in-1 test strip refills for your Mardel Master Test Kit (also available, sold separately).

Ammonia test strip refills for your Mardel Master Test Kit (also available, sold separately).