100 pH / 60 alkalinity tests- Easy to use tests for marine and freshwater aquaria measuring pH values from 7.4-8.6. Alkalinity test accurately measures buffering capacity in marine aquariums.
Other Items from Red Sea Test Kits Red Sea Marine Lab - Red Sea Reef Lab - Red Sea PH&Alkalinity - Red Sea Ammonia - Red Sea Nitrite - Red Sea Nitrate-ll - Red Sea Phosphate - Red Sea Calcium - Red Sea Copper - Red Sea Magnesium -