Japanese Blue Guppy with Lower Swordtail Gene requires at least a 10g tank, and is very tolerant of changing tank conditions. Plants should be hardy varieties such as Java Fern and Java Moss that can handle the increased hardness in the tank. Other peaceful fish would make good tank mates.
Japanese Blue Guppy, the males are smaller in size, have brighter coloration, along with a bigger tail fin, and pointed anal fin. The females are larger in size with a duller coloration, have a rounded anal fin, as well as a pregnancy patch on the lower portion of the body. Ideally, the environment should have a covering of floating plants or a place to hide protect the fry. The fry should be fed brine shrimp, micro food and pulverized flakes.