That wasn't my argument at all--I wrote that their preferences are typically different from those of soft-water apistos. Wild guppies have been discovered in waters that range from hard and alkaline to soft and acidic, but the latter represent an extreme rarity in the hobby today. Most in circulation are tank or farm-bred specimens raised in harder conditions, many from Asia, where they may be raised in semi-brackish water.skwelch said:...and the arguement of guppy's only thriving in water conditions different to that of apisto's i think is wrong, i have read that guppy's are now found in water in the wild of varying parameters.