German Blue Diamond Guppies – These delta guppies are among the most expensive guppy breeds known worldwide. The blue color pigment range is not common among reticulate lifeberiers, hence these blue guppies are considered as a rarity and are highly prised in Europe, Southeast Asia and in United States in particular. They are regarded as hardy, prolific and highly social among most Guppy classes. – At Aqua Laboratories here in California we breed these guppies for blue and pastel blue color ranges – They 100% breed true isogenic type guppies. Originally developed in Germany, these breed has over 50 years of selective breeding legacy hence it ranks as highly pure breed and qualifies under any reticulata show standard: color class, delta class ect. If you like these exclusive guppies and are interested to obtain a pair or two, you may want to visit this great aquatic auction site at Aquabid.com where we occasionally offer them for US customers only. Thank you!