Yellow Mosaic Guppy

The Yellow Mosaic Guppy is an attractive selectively bred guppy known for its bright yellow fins and intricate black mosaic patterning. Males usually display the strongest colouration, with large fan-shaped tails covered in spots, broken lines or lace-like markings. Females are generally larger and more rounded, with shorter fins and less intense colours. The exact pattern can vary between individual fish.

Peaceful, lively and sociable, Yellow Mosaic Guppies are ideal for planted community aquariums containing other small, non-aggressive species. They should be kept in groups of at least five, with open swimming areas and plenty of plants for shelter. When keeping both sexes, a ratio of two or three females for each male helps prevent individual females from receiving excessive attention. Guppies are best suited to moderately hard, slightly alkaline water.

These hardy fish are suitable for newer aquarists, although their long fins should be protected from fin-nipping tank mates. Clean, stable water and regular maintenance are important for preserving their health, colour and fin condition.

Maximum adult size: Approximately 5–6 cm; females are normally larger than males.

Temperament: Peaceful, active and sociable; suitable for community aquariums

Difficulty of care: Easy

Preferred Temperature: 22–28 °C

Preferred pH of water: 7.0–8.0; moderately hard water is recommended.

Type of breeding: Livebearer; females give birth to approximately 20–40 fully formed fry following a gestation period of around four to six weeks. Adults provide no parental care and may eat their young, so dense planting will improve fry survival.

Dietary preferences: Omnivorous. Feed a varied diet of good-quality flakes or micro-pellets, supplemented with vegetable-rich foods and occasional live or frozen foods such as Artemia, daphnia and bloodworm. Guppies naturally consume zooplankton, small insects and detritus.