Melanzona Guppy

Poecilia parae

Melanzona Guppy (Poecilia parae) — Easy care, Semi-aggressive, under Livebearer & Killifish. Minimum tank in the app: 14.5 US gal min; aim for 75–82°F and pH 6.8–8.2. The Melanzona Guppy is ideal for aquarists seeking a vibrant and dynamic species that thrives in groups.

Melanzona Guppy (Poecilia parae) in a planted freshwater aquarium
Care levelEasy
TemperamentSemi-aggressive
Min tank size14.5 US gal min
pH range6.8–8.2
Temperature75–82°F
Max size2.0 in (5.0 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.

Melanzona Guppy Tank Setup

Create a balanced environment that prioritizes open swimming areas complemented by plants and decorations to provide hiding spots. A gentle water flow suits their swimming habits, while a substrate that mimics their natural habitat enhances their comfort. Lighting should be moderate to prevent stress, allowing them to exhibit their natural colors without overwhelming glare.

What Do Melanzona Guppies Eat?

These guppies typically feed at a moderate pace, making them competitive eaters in a mixed community. Offering a varied diet will enhance their coloration and health, but be cautious of overfeeding, which can lead to water quality issues.

Melanzona Guppy Tank Mates

Ideal companions include similarly sized and temperament-friendly species, like other livebearers or small schooling fish, ensuring they share the same top to mid-water range. Be cautious with overly aggressive species or those that occupy the same swimming zone, as this can lead to stress. Intraspecies dynamics are best managed in groups of at least six to mitigate aggression and establish a stable hierarchy.

Are Melanzona 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. Aquarists often underestimate the importance of group size, leading to stress and aggression in smaller groups. neglecting water parameters, especially pH and temperature, can impact their health and behavior.

Building a community? Run the full list through the stocking calculator before you add anything else.

Log tests and reminders in App-aquatic—free, same data you see here.