API pH Down Size:4oz is a stunning addition to

is a stunning addition to any freshwater aquarium

Swordtails

730 Kelvin

Using modern bio-technology and the highest grade of carotenoids

increases the ambient air temperature and thus the animals' vitality

API pH Down Size:4oz is a stunning addition toAPI pH DOWN lowers pH to make freshwater aquariums more acidic for fish and plants when levels rise too high. pH is the measure of acidic or alkaline conditions in water, where a value of 7. 0 corresponds to a neutral pH, pH values about 7. 0 are considered alkaline, and pH values below 7. 0 are considered acidic. Recommendations Determine the pH of aquarium water with an API pH TEST KIT. To lower pH, add 1 ml. for each 10 gallons of aquarium water.