Neon Blue Tuxedo Guppy Care Guide - Aquarium Tips, Diet & Breeding

Neon Blue Tuxedo Guppies are ornamental fancy guppies recognised for their vivid electric-blue colouring and dark tuxedo-like pattern across the rear half of the body. Depending on the strain, the blue may extend through the caudal peduncle and tail, while the flowing fins can display blue, black or complementary contrasting tones.

Males are small, slender and especially colourful, with enlarged fan-shaped or delta tails in many selectively bred lines. Females are larger and less ornate, but often carry a subtle blue sheen and have the rounded body typical of mature livebearers.

Like other guppies, they are active, alert fish that spend much of their time in the middle and upper areas of the aquarium. They investigate their surroundings constantly and interact readily with one another, although males may repeatedly court females.

Poecilia reticulata naturally occupies shallow streams, pools, ditches and vegetated margins, where it encounters gently moving water and a wide range of conditions. The Neon Blue Tuxedo form was developed through aquarium breeding, so its striking pattern is a cultivated trait rather than a feature of a wild population.

Their bright colours, peaceful temperament and live-bearing reproduction have made guppies one of the most popular freshwater aquarium fishes. The Neon Blue Tuxedo variety adds a particularly strong blue-and-black contrast to a planted community aquarium.

Neon Blue Tuxedo Guppies are a selectively bred colour form of Poecilia reticulata rather than a distinct wild locality. The species originates from northern South America, including Venezuela, Guyana, Suriname and parts of Brazil, as well as Trinidad and Tobago.

A group of Neon Blue Tuxedo Guppies should have at least a 60-litre aquarium, with a footprint of approximately 60 x 30 cm or larger. Use a secure cover because guppies can jump, gentle filtration and moderate circulation, while leaving calm areas for resting and feeding. A planted layout with dense stems, floating plants and fine-leaved cover provides shelter for fry and helps the fish feel secure. Fine gravel or sand is suitable, and open swimming space should be retained in the upper and middle levels. Stable, clean freshwater is more important than elaborate decoration.

Males reach a maximum of about 3–4 cm (1.2–1.6 in), while females can grow to around 5–6 cm (2.0–2.4 in). Selectively bred fancy strains may vary slightly in overall body and fin size.

Offer a varied omnivorous diet based on a quality small-flake or micro-pellet food, supplemented with frozen or live foods such as brine shrimp, daphnia and mosquito larvae. They also benefit from regular vegetable matter, including spirulina-based foods and blanched vegetables. Feed small portions once or twice daily, only as much as they consume promptly, and provide appropriately fine food for fry.

Neon Blue Tuxedo Guppies generally live well with peaceful, similarly sized community fish such as platies, mollies, Endler’s livebearers, small rasboras, peaceful tetras, Corydoras and small bristlenose catfish. Keep a higher number of females than males to limit harassment. Avoid fin-nipping species such as tiger barbs and serpae tetras, as well as aggressive cichlids, large predatory fish and other tankmates likely to eat their long fins or fry. Very slow, delicate fish may also be unsettled by the guppies’ constant activity.

Neon Blue Tuxedo Guppies are prolific livebearers and breed readily in a mature aquarium. Maintain a ratio of one male to two or three females to reduce persistent attention from males. After internal fertilisation, females give birth to free-swimming fry after roughly 21–30 days. Provide dense plants, such as Java moss or guppy grass, so young can hide, or move the heavily pregnant female to a separate breeding setup; adults may eat the fry. A female can store sperm and produce several broods from a single mating.

Males are smaller and more vividly coloured, with a modified anal fin called a gonopodium and usually a larger, more elaborate tail. Females are noticeably larger and fuller-bodied, with a rounded abdomen and a dark gravid spot near the anal region when carrying developing young.