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100 pH test kits
Because methylene blue can be toxic to plants and harmful to biological filtration systems
Highly Versatile
The AquaClear 70 Activated Carbon Filter Insert improves water clarity for fresh and saltwater aquariums
Fritz Freshwater and Saltwater Master Test Kit Tang 100 pH test kitsIncludes one each of kits for the most commonly measured water parameters: Wide Range pH, Ammonia, Nitrite, and Nitrate. Master Test Kit. Perfect for starting a new system. Includes 4 Essential Test Kits. Accurate in both Fresh and Saltwater. Includes one each of kits for the most commonly measured water parameters: Wide Range pH, Ammonia, Nitrite, and Nitrate Master Test Kit Perfect for starting a new system Includes 4 Essential Test Kits Accurate in