Features: Ensure the health and growth of your fish with our accurate Water Quality Test Strips for Fish Tanks. Our 7 in 1 Aquarium Testing Kits accurately measures pH levels, carbonate, alkalinity, hardness, chlorine, and chloride levels, providing valuable guidance for maintaining a healthy environment. Designed for fish breeders, fish farm operators, and aquarium enthusiasts who are concerned about the water quality in their tanks and aquariums. Perfect for monitoring and adjusting water conditions in various fish tanks and aquariums to ensure optimal growth and prevent diseases. With 50 strips per tube, our fishtank test strips are made of fiber paper and highly sensitive materials, ensuring clear and easy to read results without any mess. Save money while maintaining a healthy environment. Specifications: Product Dimension: approx. 5x9cm/1.96x3.54inch Material: Paper Package Includes: 1 Bottle Aquarium Test Strips (50 Pcs) note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.