Male Galaxy Short-Tail Betta (Betta splendens)

Each selected quantity supplies one live male Galaxy short-tail Betta in the XL grade. XL is a stock grade rather than a guaranteed centimetre measurement. The fish is selected from a living colour line, so its speckling, metallic coverage, base colour, fin colour and exact tail outline can differ from another male.

The Male Galaxy Short-Tail Betta is a domestic form of Betta splendens, also known as the Siamese fighting fish. It is best planned as one territorial male in a mature, heated and covered freshwater aquarium with gentle filtration, surface access, soft planting and places to rest.

At a glance	Reviewed guidance
Product	Male Galaxy Short-Tail Betta
Scientific name	Betta splendens
Other common name	Siamese fighting fish
Sale unit	One live male per selected quantity
Dispatch grade	Supplier XL grade; no exact dispatch length supplied
Adult size guide	About 6.5-7 cm total length, with domestic fin form affecting outline
Care level	Easy to Intermediate when the aquarium is mature and heated
Temperament	Territorial male; one male per undivided aquarium
Minimum aquarium	20 litres for one male; larger is more stable
Practical temperature	24-26 C, stable
Practical pH	6.5-7.5, stable
Water hardness	Soft to medium, approximately 4-12 dH
Flow	Gentle, filtered movement without a constant strong current
Diet	Quality Betta food plus measured small frozen or live foods

What you are buying

One live male

Quantity one means one male fish. It does not mean a pair, breeding group or choice from several photographed individuals. If more than one can be ordered, each male needs a separate secure aquarium or a properly designed opaque divided system; they must not share open water.

XL is a supplier grade

The supplier labels this stock XL but has not supplied an exact body or total length. Grade can reflect the supplier's own stock grouping, and fin posture changes the apparent size of a Betta. Plan for an adult around 6.5-7 cm total length rather than treating XL as a fixed centimetre promise.

Not an individual-photo sale

No age, lineage, exact colour map, show grade or individual photograph has been supplied. The male selected for dispatch should fit the named Galaxy short-tail line, but living ornamental fish vary. Lighting, posture and stress can also change how colour is perceived on arrival.

The listing confirms	The listing does not promise
One live male Betta splendens	A pair, female or breeding group
Galaxy short-tail supplier line	One fixed arrangement of spots or colours
Supplier XL grade	An exact dispatch or adult length
Territorial male care	Guaranteed community compatibility
Eligible UK livestock delivery support	The fish pictured on a different product or category page

Name, colour and fin form

Species identity

Betta splendens is the accepted species name. Siamese fighting fish is the established common name, while Betta is the shorter aquarium name. Domestic ornamental lines have been selected for many colours, patterns, fin lengths and shapes, so they can look very different while sharing the same species-level care foundation.

What Galaxy means here

Galaxy is a commercial colour and pattern description, not a single regulated colour code. Genomic research on domestic Bettas places Galaxy among several trade names used for mosaic phenotypes. On a live fish, the term may be expressed through contrasting patches, speckles or iridescent scale coverage, but this listing does not guarantee a particular palette.

What short tail means here

Short tail is the supplier's fin-form description. It distinguishes this male from long-finned forms, but it does not certify a competition standard, exact caudal spread or formal Plakat subtype. The tighter outline can make body movement easier to observe; it does not remove the need for gentle flow, resting cover or individual temperament planning.

Why pattern variation matters

A category photograph, search result or another Galaxy male cannot establish what this individual will look like. Choose this product only if variation is welcome. If an exact colour map is essential, wait for a genuine individually photographed WYSIWYG listing rather than ordering from a graded colour line.

Why the gallery is empty

No exact source exists

Our stock records contains no photograph, image identifier, image URL or extra gallery file. The site also has no product-owned original for this male. An image from another Betta listing would belong to a different animal or colour line and could create a false expectation.

No generic or generated substitute

We have not borrowed a competitor image, reused a different product's photograph or generated an idealised fish. An empty gallery is less decorative, but it is more accurate than showing anatomy, colour or fin form that the supplier has not documented.

How to make the buying decision

Use the written sale-unit, grade and care evidence. Assume natural individual variation. The fish supplied should be assessed on live health, not on whether it reproduces a colour pattern seen elsewhere online.

Adult size and aquarium choice

Plan for the adult, not the bag

FishBase records a maximum around 6.5 cm total length, and UK trade guidance uses about 7 cm. Domestic fin shape influences the silhouette, but the biological needs include more than body length: the fish patrols, rests, rises for air, explores cover and responds to activity outside the glass.

Use at least 20 litres

A mature aquarium of at least 20 litres is the practical minimum adopted on this page for one male. Both OATA and RSPCA welfare guidance support this scale. Recent behavioural research also found better activity and fewer abnormal behaviours in a furnished 19.3-litre aquarium than in smaller jars and containers.

Larger can be easier

A larger aquarium dilutes waste and usually changes temperature more slowly, provided it is correctly heated and filtered. Useful floor area, accessible surface, gentle flow and cover matter alongside headline volume. A tall ornamental vessel with little horizontal room is not made suitable by height alone.

Bowls and unfiltered jars are unsuitable

The labyrinth organ lets the fish take atmospheric air; it does not replace clean water, dissolved oxygen or biological filtration. Small unheated vessels fluctuate quickly and offer little behavioural choice. This product should not be sold or planned as a desk ornament.

Housing choice	Suitability	Reason
Furnished 20-litre heated aquarium	Practical minimum	Supports swimming, cover, filtration and stable heat for one male
Larger planted single-male aquarium	Often preferable	More stable and provides more layout choice
Community aquarium from 40 litres	Conditional	Only with calm compatible fish and a separation plan
Small bowl or unfiltered jar	Avoid	Insufficient stability, space, heat control and filtration
Open-top aquarium	Avoid	Bettas can jump and need warm accessible air under a secure cover

Water parameters

Practical home target

Aim for 24-26 C and pH 6.5-7.5, held steadily. Broader references describe wider tolerated ranges, but the middle of the overlap is more useful for an ordinary home aquarium than repeatedly approaching an extreme. Match the source water and make any chemistry change gradually.

Soft to medium water

Approximately 4-12 dH is a practical hardness range from UK trade guidance. Stability and acclimation matter more than chasing a single ideal number with chemical products. Measure the actual tap and aquarium water before purchase, particularly if the local supply is very hard or a softening system is used.

Ammonia and nitrite must be zero

Both should remain at 0 mg/l in a mature aquarium. A detectable reading means the biological filter is not keeping pace or has been disrupted. Stop adding livestock, check the test, identify the cause and protect the fish rather than masking the reading.

Keep nitrate controlled

Nitrate should stay low and stable through sensible stocking, feeding, plants where appropriate and regular partial water changes. Compare it with the source-water baseline and watch the trend. Rising nitrate often signals that maintenance, feeding or stocking needs adjustment.

Parameter	Working target	Decision rule
Temperature	24-26 C	Use a heater and thermometer; avoid rapid daily swings
pH	6.5-7.5	Keep stable and acclimate to genuine source-water differences
General hardness	About 4-12 dH	Soft to medium; do not chase numbers abruptly
Ammonia	0 mg/l	Any detection needs immediate investigation
Nitrite	0 mg/l	Any detection is unsafe
Nitrate	Low and stable	Control through maintenance, feeding and stocking

Record real readings with the water matcher before ordering. A matching number does not replace a mature filter or suitable aquarium.

Heat, lid and surface air

Use a thermostatic heater

UK room temperature is not a dependable tropical-water control. Fit a correctly sized aquarium heater and a separate thermometer, then check the actual daily range. Position equipment so the fish cannot become trapped or rest against an unsafe hot surface.

Fit a secure lid

Bettas can jump. Cover cable gaps and feeding openings without sealing away gas exchange. A lid also helps retain warm humid air above the water, which is useful when the fish rises to use its labyrinth organ.

Leave accessible air space

Keep a small gap between the water surface and cover. Do not fill the aquarium so high that the fish cannot reach air comfortably. Floating plants can provide security, but they must not form an unbroken mat across the entire surface.

Filtration and flow

A filter is essential

Use a mature biological filter sized for the aquarium. Air breathing does not detoxify ammonia or remove organic waste. Sponge filtration, baffled outlets or an adjustable low-flow unit can work well when intake safety and maintenance are planned.

Keep movement gentle

The fish should be able to hold position, feed at the surface and choose resting areas without being pushed continually across the tank. A short-tailed male may swim differently from a long-finned male, but supplier fin wording is not a licence to use a harsh current.

Protect the intake

Make sure fins cannot be pulled against an intake. Use a suitable pre-filter if needed and check it regularly for blockage. Observe the individual after introduction; flow that looks mild in an empty aquarium can still dominate a resting fish.

Plants, cover and enrichment

Provide soft structure

Live plants, smooth silk plants, rounded wood and aquarium-safe caves create visual barriers and resting choices. Avoid sharp plastic seams, rough holes and abrasive rock that can catch fins or scales.

Add near-surface resting places

Broad leaves or a smooth purpose-made rest below the surface let the fish pause without travelling through the whole water column. Keep several routes to open air and enough open water for normal swimming.

Limit mirror exposure

A brief controlled mirror can prompt display, but constant reflection can maintain an unnecessary territorial response. Check glass angles, dark backing and room lighting if the male repeatedly flares at one panel.

Choose a calm position

Place the aquarium away from direct sun, draughts, loud vibration and repeated sudden movement. Use a regular day-night cycle. The goal is behavioural choice, not a bare tank in which the fish has nowhere to withdraw from view.

Feeding

Use an appropriate staple

Feed a quality Betta pellet, micro granule or suitable flake that the fish can take easily. Wild species-level records include zooplankton and insect larvae; domestic fish benefit from a nutritionally complete prepared staple rather than a diet made from one treat food.

Add measured variety

Small portions of daphnia, brine shrimp, bloodworm or another suitable frozen or live food can add variety. Thaw frozen food appropriately and avoid adding excess packing liquid. Live foods must come from a trusted source to reduce contamination risk.

Portion by response

Offer only what the fish consumes promptly, then remove leftovers. Adjust for pellet size, body condition, temperature and the food label rather than following a universal pellet count. Overfeeding can pollute a small aquarium quickly.

Compare the ingredients and feeding directions for Tropical Soft Line Betta Food and Tropical Betta Flakes. They are options, not a requirement to feed both together.

Temperament and individual behaviour

One male per open aquarium

Male Bettas are territorial and can seriously injure one another. Do not keep two males together in an undivided aquarium, even when the tank is large or heavily planted. Transparent dividers can also permit constant visual stress.

Individual temperament varies

Some males investigate every movement; others retreat into cover. Some tolerate carefully chosen companions while others patrol aggressively. The colour or short-tail label does not predict a guaranteed personality.

Normal activity has context

Surface visits are expected because this is a facultative air breather. Resting on a leaf can be normal. Persistent gasping, loss of balance, clamped fins, continuous hiding or an abrupt change in activity is different and should trigger water tests and a health assessment.

Tank mates

Keeping him alone is a complete setup

A planted single-male aquarium is not socially incomplete. It removes uncertainty around fin nipping, competition and territorial conflict while still allowing enrichment through space, structure, feeding and interaction with the environment.

Community attempts need more room

For a carefully planned small community, start from at least 40 litres rather than the single-fish minimum. Choose peaceful fish that use different areas, do not resemble another male Betta and do not nip fins. Add cover and keep a separate mature backup home ready.

Avoid obvious conflict

Do not combine this male with another male Betta, aggressive fish, persistent fin nippers or bright long-finned species likely to trigger display. Shrimp may be hunted. Even a commonly recommended companion can fail with a particular individual.

Separate at the first sustained problem

Chasing, torn or clamped fins, a fish unable to feed, continual hiding or repeated cornering means the arrangement is not working. Do not wait for injury to prove incompatibility.

Potential companion	Guidance
Another male Betta	Never in the same undivided aquarium
Calm small bottom fish	Possible only in a larger compatible setup with observation
Small peaceful shoaling fish	Conditional; avoid nippy species and provide sufficient group space
Long-finned or Betta-shaped fish	Avoid because they may trigger territorial display
Shrimp	At risk of being hunted; not guaranteed safe
Snails	Often tolerated, but individual investigation or harassment is possible

Compare other male Betta forms

Compare form, not care shortcuts

A Double Tail Male Betta, Delta Tail Male Betta and Halfmoon Plakat Male Betta differ in trade form and visual outline. Each still needs heated, filtered water, a secure lid, gentle flow and careful male-territory management.

Use the Betta hub for broad comparison

Browse the Betta shop to compare current males, females and forms, or use the wider labyrinth fish and Betta category for catalogue context. Never transfer a colour, size or photo promise from one listing to another.

Decision point	Galaxy short-tail male	What still needs checking
Visual priority	Mosaic Galaxy trade pattern with a shorter fin outline	Individual colour is not photographed or fixed
Social plan	One territorial male	Community compatibility remains individual
Flow	Gentle filtered movement	Observe whether the actual fish can rest and feed easily
Space	20 litres minimum for one male	Use 40 litres or more for a cautious community attempt
Photo certainty	No exact image available	Choose only if natural variation is acceptable

Routine maintenance

Test every week

Measure ammonia, nitrite, nitrate, pH and temperature on a regular schedule and after unusual behaviour, filter disruption or a livestock change. Written trends are more useful than a single apparently good result.

Change water consistently

Use regular partial water changes, commonly around 20-25% weekly as a starting routine, then adjust to measured nitrate, feeding and stocking. Treat replacement tap water for chlorine or chloramine and match temperature closely.

Protect the filter biology

Rinse dirty filter media gently in removed aquarium water rather than untreated tap water. Do not replace all biological media at once. A clean-looking filter is not useful if its nitrifying bacteria have been stripped away.

Inspect the lid and equipment

Check heater operation, thermometer agreement, lid gaps, intake guards and flow. Remove trapped debris before it restricts circulation. Maintenance is also the time to inspect smooth decor for new sharp edges or unstable pieces.

Health observation

Positive signs

Look for steady breathing, responsive movement, an ability to hold position, clear eyes, intact scales, open fins appropriate to the moment and a consistent feeding response. A healthy fish should be able to choose between exploring, resting and sheltering.

Warning signs

Clamped or fraying fins, white spots, fuzzy growth, swelling, ulcers, repeated scratching, loss of balance, rapid breathing, failure to eat or an abrupt colour and behaviour change needs investigation. Test the water first because poor water quality can imitate or worsen disease.

Do not medicate by guess

Identify the likely problem and check dose, aquarium volume, filter impact and compatibility before treatment. Some remedies damage biological filtration or are unsafe for other inhabitants. Contact an experienced aquatic retailer or fish veterinarian when the cause is uncertain.

Before ordering

Pass the aquarium test

The aquarium should already be cycled, heated, filtered, covered and furnished. Ammonia and nitrite must be zero, and temperature should have remained stable. A bottle of bacterial starter does not by itself prove readiness.

Pass the variation test

You should be comfortable receiving one male from the named colour line without an individual photograph or exact colour promise. Do not order in expectation of a specific blue, red, white, black or metallic arrangement.

Pass the social test

There must be no second male in open water. If companions are planned, confirm their adult size, temperature, behaviour and group needs, then prepare a separate mature home in case the combination fails.

Pass the care-supply test

Have a water conditioner, liquid tests, heater, thermometer, suitable food, siphon and secure transport-day plan ready. Check the forecast and delivery arrangements before choosing a date.

Arrival and acclimation

Prepare before opening the package

Test the aquarium, dim the lights and confirm the heater, lid and filter. Keep a clean container and the acclimation timer ready. Avoid rearranging the aquarium once the fish has arrived.

Follow the order instructions

Use the current livestock acclimation method supplied with the order because bag time and temperature matter. Do not add transport water to the aquarium. Keep handling and air exposure to a minimum.

Keep the first day calm

Allow the fish to find cover and the surface. Keep lighting subdued and avoid heavy feeding. Check that the current is manageable and that the male is not reacting continuously to a reflection or visible neighbouring Betta.

Record delivery concerns promptly

If there is a problem, photograph the unopened bag and fish clearly, retain the packaging and follow the reporting window in the livestock delivery and Live Arrival Guarantee terms.

Evidence behind this guide

Species name, adult scale, air breathing, habitat, feeding ecology and male-male aggression are grounded in the FishBase Betta splendens account. The 20-litre minimum, essential filtration, gentle flow, heater, surface access and male separation follow the UK OATA Betta care sheet and align with RSPCA welfare guidance.

Space and enrichment advice is reinforced by the peer-reviewed Life beyond a jar study and the open-access Life in a fishbowl study. The distinction between species identity and broad Galaxy trade naming is supported by the genomic study The genetic architecture of phenotypic diversity in the Betta fish. Practical aquarium targets on this page are conservative husbandry decisions, not claims that one number guarantees welfare.

Frequently asked questions

What exactly will I receive?

One live male Galaxy short-tail Betta splendens is supplied per selected quantity in the XL grade.

How large is the XL grade?

The supplier has not provided an exact dispatch length. XL is a stock grade, so plan for an adult around 6.5-7 cm total length without expecting a fixed measurement.

Will the fish match a particular photograph?

No.

What colours will the fish have?

Galaxy describes a mosaic trade phenotype. Speckling, patches, iridescence, base colour and fin colour vary, and no fixed palette is promised.

Is short tail the same as a certified Plakat?

Not necessarily. Short tail is the supplier description; the listing does not certify a formal Plakat subtype or show-standard caudal shape.

Is this a Siamese fighting fish?

Yes. Siamese fighting fish is the common name for Betta splendens.

Can two male Bettas live together?

No. Do not keep two males in the same undivided aquarium because territorial fighting can cause severe injury.

What is the minimum tank size?

Use at least 20 litres for one male, with a larger furnished aquarium preferred where practical.

Does the aquarium need a heater?

Yes. Maintain a stable practical range of 24-26 C with a thermostatic heater and separate thermometer.

Why does a Betta need a lid?

Bettas can jump. A secure lid prevents escape and helps retain warm air, while a small accessible gap above the water supports surface breathing.

Does air breathing mean a filter is optional?

No. The labyrinth organ provides atmospheric air access; it does not process ammonia or replace biological filtration.

What pH and hardness should I use?

Aim for stable pH 6.5-7.5 and soft to medium water around 4-12 dH, with any adjustment made gradually.

What should I feed him?

Use a quality Betta pellet, micro granule or suitable flake as the staple, with measured small frozen or live foods for variety.

Can this male live in a community aquarium?

Sometimes, but temperament varies. Use at least 40 litres, choose calm non-nipping companions and keep a mature backup aquarium ready.

Can I keep shrimp with him?

Shrimp may be hunted, so they are not guaranteed safe companions.

Is this fish suitable for a bowl?

No. Use a mature heated, filtered, covered and furnished aquarium rather than a bowl or jar.

Does the Live Arrival Guarantee apply?

The guarantee covers qualifying UK live-fish deliveries when the current receipt, evidence and reporting conditions are met.

Can I use WELCOME10?

Eligible first-time customers can enter WELCOME10 for 10% off, subject to the active promotion and checkout terms.

Order with the aquarium ready

Choose this male only when the aquarium is already mature, heated, gently filtered, securely covered and arranged for one territorial Betta. Confirm measured water conditions, accept natural Galaxy-pattern variation and prepare a separate plan for any proposed companions before selecting delivery.

Your Betta order can qualify for our UK Live Arrival Guarantee when you follow the live delivery and reporting conditions. At checkout, a qualifying first purchase may use WELCOME10 for a 10% saving under whatever promotion conditions are live that day.