Tropical Aquarium Droplet Test is designed for measuring the pH of freshwater and saltwater aquariums within the range of 4.59.5 at 0.5 pH intervals. Comes in two versions 4.5-9.5 and 6.0-7.8

The wide pH range allows monitoring of water with extremely low or high pH levels, such as South American blackwater or the alkaline waters of Africas Great Lakes.

The pH of aquarium water is one of the most important parameters for fish health and survival. Each fish species has an optimal pH range, and rapid changes in pH can severely damage their delicate skin, gills, fins, and eyes.