Neon Guppy

The Neon Guppy is a selective breeding form, distinguished by the presence of iridophores in its skin. These cells cause light diffraction, creating a characteristic metallic or neon sheen. The fish exhibit pronounced sexual dimorphism: males (up to 3 cm) are brighter, have long fins and a gonopodium, while females (up to 6 cm) are larger, more robust, and more modestly colored. The body is slender, elongated, with a reticulated scale pattern.

In nature, the species Poecilia reticulata inhabits waters in the northern part of South America and the Caribbean basin. The neon form is a product of artificial selection and does not occur in natural conditions. The original species prefers shallow areas of rivers and streams with dense vegetation, slow currents, and warm water.

A peaceful and active species, suitable for keeping in a community tank with similarly sized, calm fish. They primarily occupy the upper and middle water layers. Intraspecific aggression is practically absent, but it is recommended to keep them in groups to reduce stress and ensure natural behavior.

Neon Guppies are the result of many years of selective breeding and are not found in the wild. However, they have retained high endurance and unpretentiousness from their wild ancestors. A small group of these fish feels quite comfortable in nano-aquariums — small tanks with a minimal set of equipment. To maintain high water quality, uninterrupted filter operation and regular aquarium maintenance are important. This usually means weekly partial water changes with fresh water and the removal of organic waste, such as uneaten food and excrement. In aquarium decoration, dense thickets of fine-leaved plants or other decorative elements that can serve as shelter for fry are welcome. It should be noted that parental instincts in guppies are poorly expressed, so the young are vulnerable to adult fish and need protection. Otherwise, the decoration is at the discretion of the aquarist. As for feeding, these fish are omnivorous and readily accept a variety of foods: both dry and frozen or live. The main condition is the appropriate size of food particles.

An omnivorous species. In the aquarium, they accept all types of food: dry flakes and granules, frozen and live foods (Artemia, Daphnia, bloodworms). To maintain vibrant coloration and health, it is recommended to combine animal and plant components in their diet.

Livebearing fish, reproduction does not require special conditions. Fertilization is internal, and the female carries the fry for 3–4 weeks. After birth, the offspring are fully formed and capable of independent feeding. Due to the lack of parental instinct and the tendency of adults towards cannibalism, dense thickets of fine-leaved plants are necessary for the survival of fry in the aquarium.

They have a strong immune system, but are sensitive to water quality and sudden changes in conditions. With poor care, bacterial infections, fin rot, or parasitic diseases (ichthyophthiriasis) are possible. Prevention involves regular water changes, maintaining stable parameters, and controlling stocking density.

When purchasing, choose active fish with clean fins showing no signs of damage, film, or spots. Avoid individuals with spinal deformities (curvatures) or signs of emaciation. Healthy guppies show curiosity and are constantly in motion.