BFG1115: Features: -Test kit. -Tests tap water and freshwater aquariums for general hardness (gh) and carbonate hardness (kh). -Helps detect stress on fish caused by rapid pH shifts. -Made in United States. -Dimensions: 5.13 H x 1.63 W x 2.75 D.
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The stress test will show you how relaxed you really are. Remember, the weakest link is YOU!
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