Guppy

Poecilia reticulata

Guppy (Poecilia reticulata) — Easy care, Semi-aggressive, under Livebearer & Killifish. Minimum tank in the app: 13.2 US gal min; aim for 64–82°F and pH 6.8–8.2. Guppies are vibrant, adaptable fish ideal for both novice and experienced aquarists.

Guppy (Poecilia reticulata) in a planted freshwater aquarium
Care levelEasy
TemperamentSemi-aggressive
Min tank size13.2 US gal min
pH range6.8–8.2
Temperature64–82°F
Max size2.4 in (6.0 cm)
Captive lifespan2–4 years
SchoolingYes · 6+ recommended

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Americas / Africa (varies)

  • Africa
  • South America
  • Central America & Mexico

Regional colours match the stocking calculator’s origin map.

Guppy Tank Setup

A 50L tank should feature a mix of open swimming areas and dense vegetation to support both activity and security. Utilize gentle filtration to mimic their natural habitat, and consider a varied substrate to encourage foraging. Lighting should be moderate; too bright can increase stress levels, while dim lighting can promote shyness.

What Do Guppies Eat?

Guppies have a moderate feeding speed, and competition can arise if not enough food is provided; distribute meals evenly to reduce rivalry. Their omnivorous diet means they benefit from a varied menu, which enhances their colouration and overall health.

Guppy Tank Mates

Guppies generally pair well with other small, peaceful species, such as neon tetras or certain rasboras. However, avoid larger or more aggressive fish that may view guppies as food or competition. When kept in groups, guppy dynamics are harmonious, but overcrowding or unbalanced male-to-female ratios can lead to stress and fighting.

Are Guppies Good for Beginners?

In App-aquatic we file this under easy care. That still means a cycled tank, realistic stocking, and parameters that do not swing every weekend. A frequent error is underestimating the importance of group size; keeping fewer than six can lead to stress and aggressive behaviour. neglecting water quality and stability can result in illness, as guppies are sensitive to poor parameters.

Guides that pair with this fish

Browse species guides · Water parameters cheat sheet

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