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Left-facing adult male Poecilia parae AI illustration of the blue melanzona morph, blue-violet between two black lateral stripes.

Melanzona guppy

Poecilia parae

Blue between dark lateral stripes: one of several male morphs.

This slender blue melanzona male has two dark stripes enclosing a blue-violet panel. Yellow, red, tiger-patterned and plain males are the same species.

Adult length
Up to 3 cm
Water temperature
24–28 °C
pH
7–8
Hardness
5–10 dGH
Natural habitat
Inhabits fresh and brackish estuarine waters, as well as inland swamps and shallow slow creeks near vegetation over sand and mud.

Mild brackish care is favoured, though salt is not mandatory for all stocks. Keep at 24–28°C and pH 7–8.

View comparison →

Appearance and identification

Compare this striped male with the orange-red picta male. This does not apply to plain or unstriped parae.

Same-species behaviour

Keep at least two females per male, with visual barriers; monitor female harassment.

Diet and feeding

Feed small flakes, frozen foods and varied foods. Grazing does not make a complete diet.

Compatibility limits

Check water conditions first and consider a species-only setup.

Aquarium environment

Any brackish setup needs plants tolerant of its salinity.

Sources

www.aquariumglaser.de ↗ 2026-10-23

www.fishbase.se ↗ 2026-10-25

www.fishkeeper.co.uk ↗ 2026-10-23

PeekFish · Ornamental fish

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