Guppies are livebearers, that are they do not lay eggs, but give birth to live young. They do best in neutral or slightly alkaline water with a PH of 6.5-7.5. GEO LIQUID supplies all the minerals and trace element guppies needs for optimum growth and to bring out their brilliant colors.  It promotes of essential bacteria in the biological filter and increases the oxygen carrying capacity of the water.  The end result is the ideal stable water conditions and clear water needed for vibrant health and to stimulate breeding.