Y : Endler 'Laguna de la Malagua', X Bleeding Hart.
Endler’s Guppy - Also called Endler's Livebearer, Endler's Guppies are named after John Endler, the man who rediscovered the species in 1975. These fish are endemic to a limited area in northeastern Venezuela where they inhabit brackish lakes. In the home aquarium, this species is best kept in planted tanks that provide surface cover in the form of floating plants. Endler's Guppies are very peaceful, but use caution if kept in community tanks - due to their small size.