Green Cobra Male Guppy 3.5cm – Poecilia reticulata

The Green Cobra Male Guppy is a colourful fancy guppy known for its intricate cobra-style body pattern and bright green, yellow and metallic tones.

At approximately 3.5cm, these are young male guppies that may continue to develop stronger colour and pattern as they mature.

The distinctive cobra pattern appears as fine, reticulated or snakeskin-like markings across the body and fins. Individual males naturally vary in colour intensity, tail pattern and markings, making each fish slightly different.

Quick Care Guide

• Scientific Name: Poecilia reticulata
• Common Name: Green Cobra Male Guppy
• Sale Size: Approximately 3.5cm
• Adult Male Size: Approximately 4–5cm
• Temperament: Peaceful
• Temperature: 22–28°C
• pH: 7.0–8.2
• Water Hardness: Approximately 8–20 dGH
• Preferred Water: Moderately hard to hard, neutral to alkaline
• Diet: Omnivore
• Care Level: Easy
• Breeding: Livebearer
• Sex: Male
• Origin: Captive-bred strain of Poecilia reticulata

What Does Green Cobra Mean?

Green Cobra describes a selectively bred guppy colour and pattern strain.

The “cobra” part of the name refers to the fine network or snakeskin-style markings that run across much of the body and may continue into the fins.

Green Cobra males can display a mixture of:

• green and metallic body tones
• yellow highlights
• black cobra-pattern markings
• blue or turquoise iridescence
• patterned dorsal and tail fins

Colour and pattern naturally vary between individual fish, so product photos should be considered representative of the strain rather than an exact guarantee of each fish supplied.

Aquarium Setup

Green Cobra Male Guppies are active community fish that appreciate open swimming space along with live plants and sheltered areas.

A suitable aquarium can include:

• live aquarium plants
• floating plants
• open swimming areas
• gentle to moderate filtration
• good oxygenation
• a secure aquarium lid

Avoid excessively strong water flow, particularly with fancy males that have larger tails and fins.

Browse our Live Aquarium Plants range if you are creating a planted guppy aquarium.

Water Conditions

Guppies are adaptable, but they generally perform best in moderately hard to hard water rather than very soft, acidic conditions.

For long-term aquarium care, aim for approximately:

• Temperature: 22–28°C
• pH: 7.0–8.2
• General Hardness: 8–20 dGH

Stable water quality is more important than continually adjusting the aquarium to reach one exact number.

The aquarium should be fully cycled, with ammonia and nitrite maintained at zero and regular partial water changes used to control accumulated waste.

Male-Only Guppy Groups

Male guppies do not need females to remain healthy or display their colour.

A male-only guppy aquarium can actually be a very practical option because it allows you to keep several colourful strains without continually producing fry.

Males may display and chase one another from time to time, but serious aggression is uncommon when adequate space and cover are provided.

Keeping Males & Females Together

If male and female guppies are kept together, breeding should be expected.

A useful starting ratio is approximately one male to two or three females. This helps spread the males' persistent courtship behaviour between several females.

Female guppies can store sperm and may produce multiple broods after mating, so populations can increase quickly.

Tank Mates

Green Cobra Male Guppies are peaceful community fish and can be kept with many similarly sized species that prefer comparable water conditions.

Potential companions include:

• other Guppies
• Platys
• selected Mollies
• Corydoras
• peaceful Rainbowfish
• other calm community fish suited to moderately hard water

Avoid aggressive fish and known fin nippers that may damage the guppy's tail or dorsal fin.

Browse our Guppies range for other guppy colours and strains.

Feeding Green Cobra Guppies

Guppies are omnivorous and benefit from a varied diet.

A good feeding routine can include:

• quality tropical flakes
• small guppy pellets or granules
• brine shrimp
• daphnia
• small frozen or live foods
• foods containing suitable plant and algae ingredients

Feed small amounts that can be consumed quickly rather than allowing excess food to accumulate in the aquarium.

Are Green Cobra Guppies Suitable for Beginners?

Yes. Green Cobra Guppies are generally suitable for beginner fishkeepers when their basic requirements are met.

The most important points are maintaining a fully cycled aquarium, providing clean moderately hard water, choosing peaceful tank mates and offering a varied diet.

Arrive Alive Guarantee

We carefully pack our live fish for transport and back eligible orders with our Arrive Alive Guarantee.

If a fish arrives deceased, please contact us within 2 hours of delivery with your order details and clear photos of the affected fish. Once the claim has been verified, an applicable refund or store credit will be provided for the affected fish.

For full claim requirements, shipping conditions and exclusions, please read our Arrive Alive Guarantee & DOA Policy.

Frequently Asked Questions

How big do Green Cobra Male Guppies grow?

Adult males generally reach around 4–5cm. The fish offered here are approximately 3.5cm at the time of sale.

What does Cobra mean in a guppy?

Cobra refers to the fine reticulated or snakeskin-style markings that appear across the body and sometimes the fins of selectively bred guppies.

Are all Green Cobra Guppies identical?

No. Green, yellow, blue, metallic and black markings can vary considerably between individual males.

Do male guppies need females?

No. Male guppies can be successfully kept without females, and male-only groups are a practical way to avoid unwanted breeding.

What water is best for Green Cobra Guppies?

They generally do best in moderately hard to hard water with a pH around 7.0–8.2 and a temperature of approximately 22–28°C.

Are Green Cobra Guppies peaceful?

Yes. They are peaceful community fish, although males may occasionally chase and display toward one another.

Can Green Cobra Guppies live with Bettas?

This combination can be risky because Bettas may react aggressively toward brightly coloured, long-finned guppies and fin damage can occur.

Are Green Cobra Guppies suitable for beginners?

Yes. They are suitable for beginners provided the aquarium is fully cycled and maintained with clean, stable, moderately hard water.

Live fish naturally vary in colour, pattern, fin shape and size. The stated 3.5cm sale size is approximate and product photos should be considered representative of the strain.