Male Cobra Mix Guppy (Poecilia reticulata)

A bright, active male guppy for aquarists who enjoy natural variation. This listing supplies one live male cobra-pattern guppy from an assorted mix. The recorded dispatch size is approximately 3-3.5 cm. Every fish is selected as a male, but colour, markings and fin detail vary because this is a mixed trade line rather than a fixed named strain.

Poecilia reticulata is a social livebearer that suits a mature, heated community aquarium with mineral-rich water, gentle filtration and room to swim. Males are usually slimmer and more ornate than females. They can live in a male-only display or in a carefully planned mixed-sex group, provided the aquarium is large enough and social pressure is watched.

Sale unit: one live male fish per selected quantity. This is not a pair, trio or choice of a particular colour.

Male Cobra Mix Guppy care at a glance

What one quantity includes

Each quantity adds one live male to the order. Selecting three means three males, not one male and two females. The supplier's recorded size grade is approximately 3-3.5 cm. As with any living animal sold within a size band, a small amount of individual variation is normal.

The fish is sexed as male before supply. A male guppy is normally recognised by its slimmer outline, stronger fin colour and a modified, pointed anal fin called a gonopodium. Young males may continue to colour and fill out after arrival, so the final balance of body pattern and tail colour can develop with age, diet, light and condition.

This product does not include a named lineage certificate, breeding-quality assessment or a choice of the fish shown in the gallery. Order a mixed male when assortment is part of the appeal; choose a named-colour product when one particular trade appearance matters more.

What “Cobra Mix” means

In the ornamental fish trade, cobra describes a patterned direction often involving reticulation, spots, bars or snake-like markings across the body and fins. It is an appearance label, not a separate species. “Mix” means males are drawn from an assorted line, so one may lean red, yellow, green, blue, dark or multicoloured while another shows a different balance.

The wording does not guarantee King Cobra ancestry, a pure line, a fixed tail shape or a particular genetic combination. It also does not mean every fish will carry all colours. Honest variation is central to this product.

Understand the gallery image

The existing gallery picture is a supplier reference collage showing three examples of the kind of pattern variation associated with this trade line. It contains visible supplier branding. It is retained to provide useful identity evidence and has not been removed, cropped, repainted or replaced.

The collage is not a photograph of the exact individual selected for an order, and it does not promise that all three examples are available at the same time. Live fish differ. Use the picture to understand the broad cobra-pattern direction, then use the written sale-unit and variation information to decide whether an assorted product is right for you.

Male appearance and adult size

Male guppies are generally smaller and slimmer than females, with a more intensely coloured body and proportionally showier fins. Domestic lines can carry colour into the dorsal fin, tail and flanks. Cobra-pattern males often show fine reticulation or repeated spots, but the clarity and location of those markings differ from fish to fish.

Plan for an adult male around 3-4 cm rather than treating one number as a guarantee. Age, domestic line, nutrition and individual development all matter. The supplied 3-3.5 cm grade may include a male that is already strongly coloured as well as one whose pattern continues to develop after settling.

Females are commonly fuller-bodied and less ornate. Customers building a female group can compare the separate Female Cobra Mix Guppy, which has its own sex-specific sale information.

Why choose an assorted male

An assorted male group can produce a lively display without requiring every fish to match. The differing patterns make individuals easier to recognise, while their small size works well in a carefully stocked community aquarium. A male-only setup also avoids planned breeding and removes courtship pressure on females, although males can still display, spar and chase one another.

This is a good choice when you value variety and can accept that the selected fish will not be a colour match to a screen image. It is not the right listing for a breeding project that requires known parentage, or for a display where every male must be the same named strain.

For more species and colour options, browse the guppy collection. Stock and available lines change, so the collection is the most useful place to compare current choices.

Aquarium size and layout

Use at least 45 litres for a small guppy group. Tropical Fish Co prefers 60 litres or more where space allows because the extra water volume is more stable, offers better swimming room and lets fish move away from persistent attention. Stock for the aquarium's mature filtration and full community, not simply for the guppies' short body length.

Arrange planting around the rear and sides, with some floating roots, wood or other smooth cover to break lines of sight. Keep an open lane for active swimming. This combination gives subordinate fish somewhere to pause without turning the entire aquarium into dense cover. A secure lid is sensible because startled guppies can jump.

Long fins do best with gentle filtered movement rather than a forceful jet. Avoid sharp plastic plants, rough rockwork and narrow gaps that can snag fins. A mature biological filter, thermostatic heater and separate thermometer are basic equipment, not optional extras.

Water parameters and equipment

Guppies are adaptable, but “hardy” does not mean they should be used to cycle a new aquarium or moved through unstable water. They tend to suit neutral-to-alkaline, medium-hard water. Test the source water before buying and compare it with the intended range.

Do not add mineral salts automatically. First test the tap water and aquarium, then use a controlled method only when a genuine hardness shortfall exists. The water matcher can help compare your measured conditions with the listing, but regular liquid testing remains essential.

Feeding for colour and condition

Feed a varied omnivorous diet. A quality small flake or micro granule with an algae or plant component can form the staple. Rotate in suitably sized frozen or live foods such as daphnia, brine shrimp or cyclops in measured portions. Variety supports condition, but no food can guarantee a specific inherited colour.

Offer only what the fish can finish promptly, usually in one or two small feeds per day. Crush larger flakes so small mouths can take them easily. Watch that new or quieter males reach food; fast tank mates can clear the surface before every guppy has eaten.

Overfeeding is a water-quality problem as well as a digestive one. Remove persistent leftovers and adjust the next portion. A swollen abdomen, stringy waste or appetite change needs investigation rather than an automatic increase in food.

Male-only and mixed-sex social groups

Guppies are social fish and should not be planned as permanent solitary pets. A male-only group can be attractive and prevents new fry from matings within that group. It still needs enough males, floor space, planting and visual barriers to spread display and chasing. Observe individuals rather than assuming a group is settled because no females are present.

In a mixed-sex group, use at least two females per male. A stronger female bias can be helpful in a larger aquarium, but it does not replace cover or observation. Male courtship is persistent, and one female should not carry all of that attention. If a fish is repeatedly cornered, missing food or keeping its fins clamped, change the social setup promptly.

Read the full guppy care guide before combining sexes or adding several fish at once. It covers the practical relationship between group size, filtration, breeding and long-term stocking.

Breeding and fry planning

Guppies are livebearers. In a mixed-sex aquarium, breeding is likely rather than exceptional. Females can store viable sperm for several months, so removing a male later does not guarantee that broods will stop immediately. Plan what will happen to fry before introducing the sexes.

Dense fine-leaved cover increases fry survival, while adult guppies and other fish may eat young. If fry are deliberately raised, they need suitable small foods, stable clean water and enough growing space. Do not rely on a tiny breeder box as permanent accommodation for the mother or offspring.

This assorted male is sold as a display fish, not as certified breeding stock. Pattern inheritance can be complex, and the offspring of an unknown mixed line should not be advertised as a pure named strain.

Tank mates and community behaviour

Choose peaceful companions that share the same temperature and neutral-to-alkaline, medium-hard water. Suitable choices can include other guppies, carefully selected livebearers and peaceful bottom fish, provided the aquarium has enough capacity and each species' needs have been checked.

Avoid confirmed fin nippers, aggressive cichlids and fish large enough to swallow a guppy. Very soft, acidic-water specialists are a poor compromise because one side of the community would live outside its preferred chemistry. Strong current specialists can also leave a long-finned male working constantly just to hold position.

Small ornamental shrimp, especially shrimplets, may be eaten. Endler-type livebearers require care where unwanted hybridisation matters. Compatibility always depends on aquarium dimensions, group sizes, individual behaviour and the full stocking plan; a species label alone cannot guarantee peace.

Compare the cobra guppy options

Choose the mixed product when different males are welcome. Choose a named-colour listing when the dominant trade colour is part of the purchasing decision. None is a made-to-order exact-fish selection unless a listing explicitly says otherwise.

Arrival and acclimation

Prepare the aquarium before dispatch day: confirm the heater and filter are running, test ammonia and nitrite at zero, and check temperature and pH. Keep the lights low when the fish arrives. Follow the acclimation instructions supplied with the order and avoid extending bag time unnecessarily once the parcel has been opened.

Do not add transport water to the aquarium if the current instructions tell you to transfer the fish separately. Allow the new male quiet time, then offer a small feed only after he is settled. Temporary hiding or paler colour can follow transport; persistent rapid breathing, loss of balance or inability to swim normally needs prompt attention.

Where practical, use a mature quarantine aquarium for new livestock. It should be heated, filtered and appropriately sized, not an uncycled container. Quarantine protects the established community and gives a new fish a calmer setting for observation.

Routine care and health checks

Each day, check swimming, breathing, appetite, body shape and how the male interacts with the group. Healthy guppies are usually alert and interested in food. Look beyond colour: clamped fins, shimmying, surface gasping, repeated isolation, rubbing or weight loss can signal water, social or health problems.

Test water regularly and change an appropriate portion with conditioned, temperature-matched water. Clean filter media in removed aquarium water when flow falls; do not replace all mature media at once. Vacuum accumulated waste without stripping every planted surface clean.

Start troubleshooting with measured facts. Confirm ammonia, nitrite, nitrate, temperature, pH, oxygenation and recent changes. Then check food access, current, aggression and new introductions. Medication chosen without identifying the likely problem can add stress and may harm sensitive tank inhabitants.

Is this guppy right for your aquarium?

This product is a strong fit when you have a mature heated aquarium, tested mineral-rich water, suitable guppy companions and room for active social behaviour. It also suits a customer who welcomes an assorted male rather than expecting the exact colours in a reference collage.

Choose another fish if the aquarium is newly filled, very small, unheated, strongly turbulent or built for soft acidic specialists. Pause before ordering if you cannot accommodate a social group, if current residents nip fins, or if mixed-sex breeding has not been planned.

Care evidence used on this page

• FishBase: Poecilia reticulata for species identity, habitat, diet and social aquarium context.
• OATA guppy and molly care sheet for UK aquarium size, water, group and feeding guidance.
• Manenti and colleagues on environmental enrichment for the welfare value of a structured, enriched environment.
• Darden and Croft on male harassment and female habitat use for the mixed-sex pressure cautions.
• Gasparini and colleagues on female sperm storage for the warning that future broods can continue after a male is removed.

These sources support the species-level care framework. The supplied sex, size grade and mixed trade-line identity come from the product record. Natural variation means no source can predict the exact markings of an individual fish.

UK delivery, guarantee and first-order offer

Live-fish dispatch is scheduled around suitable routes and conditions. Review the current delivery information before ordering so someone can receive and inspect the parcel promptly.

Eligible UK livestock orders are covered by the Live Arrival Guarantee when the current delivery, receipt, evidence and reporting terms are followed. The guarantee concerns arrival under those terms; it does not turn natural colour or size-band variation into a fault.

Eligible first-time customers can use WELCOME10 for 10% off while the offer is active and its checkout conditions are met. Promotions can change, so the checkout is authoritative.

Frequently asked questions

What does one quantity include?

One live male cobra mix guppy is supplied for each quantity selected. It is not a pair or trio.

How large is the fish when supplied?

The recorded dispatch grade is approximately 3-3.5 cm. A small amount of individual variation within a live size band is normal.

How large will an adult male become?

Plan for roughly 3-4 cm, with differences between domestic lines, age and individual development.

What colours can a Cobra Mix male be?

Colour can lean red, yellow, green, blue, dark or multicoloured. The shared feature is the assorted cobra-style pattern direction, not one fixed palette.

Can I choose the exact colour or fish?

No. This is an assorted product and not a what-you-see-is-what-you-get listing. Use a named-colour product when one trade direction is essential.

Does Cobra Mix mean King Cobra?

No. Cobra describes the broad reticulated or snake-like appearance. A named King Cobra lineage or specific genetics are not promised.

Is the gallery collage the exact fish I will receive?

No. It is a supplier reference collage showing possible pattern variety, not the exact selected individual or a guarantee that all three examples are available.

How can I tell this guppy is male?

Males are usually slimmer and more ornate and have a pointed modified anal fin called a gonopodium. The fish is selected as male before supply.

What aquarium size should I use?

Use at least 45 litres for a small group. A 60-litre or larger aquarium is preferred for greater stability, swimming room and social separation.

Which water parameters are suitable?

Provide stable water at 20-28 C, pH 7.0-8.0, 8-18 dH and 5-15 dKH, with zero ammonia and zero nitrite.

Can male guppies live together without females?

Yes, a properly sized male-only group can work. It still needs companionship, planting, broken sight lines and observation for repeated chasing.

How many females should live with one male?

Use at least two females per male in a mixed-sex group, with an aquarium and filter sized for the full population.

Will adding this male produce fry?

Breeding is likely when mature males and females share an aquarium. Females can also store viable sperm for months, so plan for fry before mixing sexes.

What should I feed him?

Use quality small flake or micro granules with an algae component, plus measured small frozen or live foods for variety.

Which tank mates should I avoid?

Avoid fin nippers, aggressive fish, predators, very soft acidic specialists and companions that need strong turbulent current.

Is this guppy safe with shrimp?

It is not reliably shrimp safe. Small shrimp and especially shrimplets may be eaten.

Does the Live Arrival Guarantee apply?

Eligible UK livestock orders are covered when the current delivery, receipt, evidence and reporting terms are followed.

Can I use WELCOME10?

Eligible first-time customers can use WELCOME10 for 10% off while the promotion is active and its checkout conditions are met.