
Rosy Phantom Tetra (Megalamphodus roseus)
22–26°C · pH 6–7.5 · 60L

A small South American shoaling tetra for a mature planted community aquarium. Each cart quantity is one unsexed fish; choose the live size grade above. Exact length, sex and orange shade are not guaranteed, and the gallery is AI-assisted representative illustration.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Product-photo provenance and any image-specific limitations are stated on the listing.
Hyphessobrycon flammeus
Orange Flame Tetra are a shoaling species — they need 6+ to feel safe and show their full colour.
A small South American shoaling tetra for a mature planted community aquarium. Each cart quantity is one unsexed fish; choose the live size grade above. Exact length, sex and orange shade are not guaranteed, and the gallery is AI-assisted representative illustration.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Product-photo provenance and any image-specific limitations are stated on the listing.

Ember tetras are very small Brazilian social fish, with a maximum recorded length of 2.0 cm excluding the tail. Keep them only in a fully cycled, stable aquarium. We recommend a group of at least 10 and about 45 litres with a 45 × 30 cm footprint rather than using a litres-per-fish formula.
Maintain these water conditions for optimal health and vibrant colors
The Orange Flame Tetra is the orange trade form of the Flame Tetra, Hyphessobrycon flammeus, a small Brazilian shoaling fish also known as the Rio Tetra or Red Tetra. It brings warm copper, orange and red tones to the middle of a mature aquarium, but the word orange is a supplier colour label rather than part of the scientific name. Real fish vary, and no exact shade, sex or pattern is promised.
This is a social species, not a fish to keep alone. Each cart quantity adds one fish; select a size, then choose enough fish for the group you can house. Five is the evidence-based minimum in the sources below, while our practical recommendation is six or more and preferably eight to twelve when the aquarium footprint, filtration and total stocking allow. The multi-buy tiers on this page are quantity discounts, not a pre-packed six, a sexed pair or a complete shoal.
The live listing offers two approximate supplier size grades. A grade describes the stock band used for selection; it is not a millimetre-exact measurement, age or maturity guarantee. Before ordering, confirm a mature, cycled aquarium, compatible water and enough room for the whole planned group. Browse our wider tetra collection only after comparing adult needs rather than colour alone.
One cart quantity means one unsexed fish in the selected size grade. If you select a quantity of six, six fish are added; if you select ten, ten are added. The page may show lower per-fish prices at larger quantities because this product carries the shoal multi-buy mechanic. Checkout applies the eligible quantity discount automatically, subject to the live offer shown on the page.
| Decision | What this listing means | What it does not promise |
|---|---|---|
| Cart quantity | One fish for every quantity selected | A fixed pack, pair or pre-formed shoal |
| Size option | An approximate supplier trade grade | Exact length, age, adult size or maturity |
| Orange label | The supplied colour-form name | A formal subspecies or identical colour in every fish |
| Sex | Unsexed stock unless a variant explicitly says otherwise | Male, female or a chosen ratio |
| Gallery | representative illustrations | A photograph of the individual dispatched |
Build the group around the aquarium, not the discount threshold. A quantity that exceeds the tank's biological capacity is not a saving. Use the tank-volume calculator to check actual litres, then account for the swimming length, filter capacity, plants, decor and every current occupant.
The accepted binomial is Hyphessobrycon flammeus. Flame Tetra is the strongest common-name search, while Rio Tetra and Red Tetra are established alternatives. The supplier lists this shipment as the orange form. We retain that useful buying distinction in the product name, but write the scientific identity without adding orange to it.
Modern FishBase places the species among the American tetras in Acestrorhamphidae. Older aquarium and scientific sources often use Characidae. That family-level change does not alter the practical identity or care of the fish, so this page avoids turning a changing classification boundary into a marketing claim.
The species redescription identifies two vertically elongated humeral spots near the shoulder and a clear tail among its diagnostic features. Those details matter because a strongly orange generic tetra image is not enough to prove identity. Our current gallery is useful for the broad trade-form impression, but it does not clearly show every diagnostic feature. The accepted name comes from supplier and taxonomic evidence, not from guessing from the pictures.
Wild H. flammeus is reported as Endangered in the current FishBase/IUCN record. The supplier data available to us does not state whether this shipment is captive bred or wild caught, so we do not invent provenance. Never release aquarium fish or water into a natural watercourse. Contact us before ordering if documented origin is material to your decision.
This fish can suit a first well-researched community, but beginner-friendly does not mean maintenance-free. The aquarium must be cycled, the group must be large enough, and ammonia and nitrite must remain at zero. A keeper who can test water, feed measured portions and respond to social stress will usually find the species manageable.
| Your situation | Fit | Reason |
|---|---|---|
| Mature 60 cm planted aquarium with room for 6+ | Good starting fit | Provides group security, cover and a useful swimming lane |
| Small new tank that is still cycling | Not ready | Small tetras are vulnerable to ammonia, nitrite and rapid instability |
| One fish wanted as a solitary accent | Poor fit | This is a shoaling species and undersized groups can be stressed |
| Community of similarly sized, calm fish | Potentially suitable | Water, adult size, feeding speed and behaviour still need matching |
| Tank with large predators or persistent fin nippers | Avoid | A small shoal can be chased, injured or eaten |
| Shrimp-breeding display | Conditional | Adult shrimp may coexist, but eggs and shrimplets can be eaten |
If the plan is a mixed display, compare the full stocking list through our community fish hub. Compatibility is a risk assessment, not a universal list of safe names.
Flame Tetras come from south-eastern Brazil. Documented distribution includes streams and coastal rivers in Rio de Janeiro State, the Guanabara Bay basin, middle Paraiba do Sul and Guandu systems, plus the upper Tiete drainage in Sao Paulo. They are associated with shallow, slow-flowing streams under forest shade, including both dark-brown and clear water over sand with vegetation.
The useful aquarium lesson is not that a home tank must copy one exact river. It is that the fish benefits from broken light, plant cover, calm refuge and open midwater space. A dark substrate and wood can make a planted layout feel secure, while an uncluttered central or front swimming lane lets the group move together.
Natural habitat is not evidence that every wild chemistry value should be recreated suddenly. Supplier fish may be held in different water, and rapid pH or hardness correction can cause more harm than a stable, suitable captive range. Ask what water the fish is arriving from if your tap water sits near an extreme.
FishBase cites a 60 cm minimum aquarium length, and OATA gives 45 litres as a general lower baseline for a small shoal of smaller tetras. For this listing we recommend a mature tank with at least a 60 cm swimming length and roughly 54-60 litres for a small species-led group. A community with several midwater species needs more volume and more horizontal room.
Litres alone are not enough. A tall narrow tank can hold the same water as a longer aquarium while giving less usable group movement. Leave a clear lane, avoid filling the entire middle level with decor, and scale the number of fish to the filter and total adult stocking.
Dense planting at the rear and sides, floating cover and wood can soften light and create retreat points. Keep some open water rather than making a solid wall of stems. Live plants are optional for survival, but a thoughtfully planted layout often gives small tetras more confidence. Browse fish for planted aquariums to compare species with similar layout needs.
Use a mature filter with enough biological capacity for the complete shoal. Gentle to moderate circulation is appropriate; the group should be able to hold position and cross the tank without being pinned to one end. A baffled outlet or spray bar can spread flow. Keep a secure lid because startled fish can jump.
Provide a predictable day-night cycle. There is no evidence-based need to prescribe one universal number of lighting hours for the fish because plant choice and nutrient management also control the schedule. If the shoal hides or loses colour under intense light, add cover and reduce glare rather than relying on colour-enhancing bulbs as a substitute for welfare.
Published species information gives a broad 22-28°C, pH 5.8-7.8 and roughly 5-25 dGH envelope. The supplier lists 22-26°C, pH 5.8-7.8 and a wider hardness tolerance. For ordinary captive care we use a narrower practical target of 22-26°C, pH 6.5-7.5 and around 4-12 dGH. A stable value within a suitable range is safer than repeatedly chasing a perfect number.
Test the source and replacement water before making a large change. Treat tap water for chlorine or chloramine, match temperature, and avoid abrupt swings in dissolved minerals. OATA advises nitrate should not rise more than 20 mg/l above the normal tap-water level. That guidance is more useful than assuming one nitrate value is ideal for every supply.
Check the water-parameter matcher when comparing this fish with current occupants. The tool helps screen ranges; it does not replace testing or observation.
FishBase records this species in relatively numerous schools and notes agonistic interaction among alpha males. That means the honest temperament description is social and usually community-compatible, with display and short chases possible. It is not accurate to call every individual perfectly peaceful, and it is equally misleading to label normal male display as automatic dangerous aggression.
Keep at least five, with six as our practical minimum order plan and a larger group preferred when space permits. More fish can spread attention and produce more natural movement, but only if water quality and footprint remain adequate. An overcrowded group is not a welfare improvement.
Expect the shoal to use the middle levels, gather around cover when uncertain and become more visible after settling. Colour can fade during transport or stress and develop again with stable care. Dominant males may display more strongly; apparent colour is also affected by maturity, condition, genetics, social position, background and lighting.
Choose companions by adult size, water range, swimming speed, feeding competition and temperament. Similar-sized calm fish that will not swallow or persistently chase the tetras are the starting profile. Bottom-dwelling fish can reduce competition for the same swimming level, but they still add bioload and may need different substrate or food.
Avoid fish large enough to eat them, persistent fin nippers, highly territorial occupants in a cramped footprint and species that require incompatible water. Long-finned slow fish can also be a poor match if male display turns into repeated nipping. Observe introductions and keep a cycled separation option ready rather than assuming a compatibility table removes risk.
Adult ornamental shrimp may coexist in dense cover, but small fish will investigate bite-sized moving food. Eggs and shrimplets are not protected. Snails are usually less vulnerable, although every addition changes waste load. A shrimp-breeding aquarium should prioritise the shrimp rather than relying on a community label.
No named tank mate is universally safe. Individual behaviour, group size, aquarium layout and total stocking can turn a plausible match into a poor one. Monitor feeding access, chasing, hiding and fin condition after every introduction.
Species evidence records small insects, worms and plant material. In the aquarium, use a complete fine flake or micro-granule as the staple, sized so every fish can swallow it easily. Add small frozen or live foods such as daphnia, cyclops, baby brine shrimp or carefully portioned bloodworm for variety. Variety complements a complete staple; it does not mean feeding rich foods at every meal.
| Food role | Examples | How to use it |
|---|---|---|
| Complete staple | Fine quality flake or micro-granule | Base most meals on a product labelled complete for small tropical fish |
| Frozen variety | Daphnia, cyclops, baby brine shrimp | Thaw or portion cleanly and offer only what the shoal clears |
| Live variety | Appropriately cultured small foods | Use a clean trusted source; avoid introducing contaminated water |
| Foods to avoid | Oversized pellets, mammal meat, oily human food | These are unsuitable in size or composition and can pollute the tank |
Feed a small amount once or twice daily and watch the least assertive fish, not only the fastest feeders. The useful portion is what the group consumes promptly without food settling into the substrate. Remove excess, adjust the next feed and include uneaten food when interpreting nitrate or cloudy water.
Do not use salt or medication as a routine tonic. If appetite, body condition or waste changes, test the water first and seek diagnosis rather than adding several treatments at once.
Real Flame Tetras generally combine a lighter silver-bronze front with warmer red or orange toward the rear and fins. Diagnostic shoulder spots may be visible, while intensity varies. Males are often slimmer and can show stronger colour during display; females may be fuller when carrying eggs. Those are tendencies, not a reliable remote-sexing method for every juvenile or transport-stressed fish.
The four current gallery files are representative illustrations. They show saturated orange tetra-type fish, but they do not clearly reproduce every diagnostic feature described in the scientific redescription. They are not photographs of our current stock or the individual you will receive.
The image showing two fish is a scene illustration only. It does not mean two fish are included, does not establish sex and does not depict a bonded pair. Use the variant picker and cart quantity as the sale contract. If exact current appearance is essential, contact Tropical Fish Co before ordering and ask whether a current-stock photograph is available.
The live product offers an approximate 2.5 cm grade and a larger trade grade labelled over 3 cm. Supplier size labels may use a different measurement convention from the standard length reported in scientific sources, and grading live fish is not millimetre-perfect. This is why the larger label can sit beside a supplier care record that says the species grows to about 3 cm.
| Displayed grade | Useful interpretation | Still variable |
|---|---|---|
| 2.5 cm | Smaller supplier selection band | Exact length, age, sex, shade and maturity |
| Over 3 cm | Larger supplier selection band | How far over 3 cm, adult status, sex and colour |
Choose one size grade for a new group where possible. Very uneven fish can compete differently at feeding time. If adding to an existing shoal, compare the newcomers with resident size and behaviour, quarantine where appropriate, and avoid placing much smaller arrivals with fish able to intimidate or swallow them.
Stable care is built from repeatable checks. The schedule below is a starting framework; aquarium stocking, plant growth, tap-water nitrate and filter design may justify a different frequency. Record results so a trend is visible before fish show severe symptoms.
| Frequency | Check | Action |
|---|---|---|
| Daily | Temperature, breathing, group position, appetite and equipment flow | Investigate a sudden change before adding food or treatment |
| Weekly | Ammonia, nitrite, nitrate, pH and visible waste | Keep ammonia/nitrite at zero and interpret nitrate against source water |
| Weekly starting point | Water-change need | OATA recommends about 25%; match and condition replacement water |
| As needed | Filter flow and intake | Clear blockages; rinse biological media gently in removed tank water, not untreated tap water |
| Monthly review | Body condition, group size, plant cover and total stocking | Adjust feeding, layout or stocking before chronic stress develops |
Never replace all biological media at once unless a manufacturer or aquatic professional gives a specific reason. A clear aquarium can still have unsafe dissolved waste, so visual cleanliness is not a substitute for testing.
Prepare the aquarium before dispatch: confirm zero ammonia and nitrite, stable temperature, a working filter, secure lid and enough group space. Have water conditioner, test kits and a clean container available. Do not start rebuilding decor while the fish are in transit.
Our current live-fish delivery page explains the confirmed Wednesday or Thursday arrival rhythm, tracked licensed live-animal courier and specialist packaging. Someone must be available for the confirmed window. Read the live page rather than relying on an old product sentence, because delivery dates and conditions can change.
On arrival, inspect the sealed bags before opening. Follow the acclimation instructions supplied with the order and avoid pouring transport water into the aquarium. Dim the lights, release the group calmly and watch breathing, balance and social position. Feeding immediately is less important than stable oxygen and water.
If any fish arrives dead, dying or clearly compromised, keep it in the sealed transport bag while gathering the evidence required by the current Live Arrival Guarantee terms. Contact us the same day. The policy page explains the short continuous unboxing video, attendance and claim requirements; the guarantee is not a promise that no transport problem can ever happen.
A settled healthy shoal should show steady breathing, responsive feeding, intact fins and coordinated movement with normal individual variation. Warning signs include isolation, persistent hiding, clamped or damaged fins, rapid gill movement, flashing, white spots, loss of balance, unusual swelling, wasting or several fish refusing food.
Test ammonia, nitrite, nitrate, pH and temperature before assuming disease. Water stress, transport, bullying and poor feeding access can imitate infection. Correct an identified environmental problem gradually. Avoid mixing medicines or using a broad treatment merely because one symptom sounds familiar.
A separate observation or quarantine aquarium can protect an established community, but it must itself be cycled, heated and appropriately filtered. Match water and observe appetite, respiration, waste and external condition. If fish deteriorate, several animals are affected, or diagnosis is uncertain, seek an aquatic veterinarian or experienced aquatic professional. Product copy cannot diagnose a live animal.
Many medications are unsafe for shrimp, snails, plants or biological filters. Read the exact label and treat in a separate hospital tank when appropriate. Copper sensitivity and dosage vary by product and occupant, so avoid absolute rules based on an ingredient name alone.
Hyphessobrycon flammeus is an egg scatterer. Species evidence reports females producing roughly 200-330 oocytes on rocks, vegetation or submerged debris, with eggs hatching in about two to three days. Adults may eat eggs and fry, which is why a community aquarium is unlikely to raise many young.
Planned breeding normally uses a separate mature setup with fine plants or spawning media, subdued light, clean stable water and food small enough for free-swimming fry. Do not use the protected product size grades to infer sex. The current listing is unsexed, and colour alone is not a guarantee.
Breeding should be attempted only with a plan for fry food, water quality and future homes. Never release surplus fish. The fact that the species can reproduce in aquaria does not make every group compatible, sexed or ready to spawn.
Comparison works best when it focuses on adult needs, not a promise that one species is universally easier. All three fish below need mature water, a suitable group and compatible stocking. Availability and size options can change, so open each live listing before deciding.
| Fish | Visual role | Planning distinction | Live listing |
|---|---|---|---|
| Orange Flame Tetra | Broader warm copper-orange group | About 3 cm planning size; 60 cm swimming length recommended | This page |
| Ember Tetra | Smaller, finer orange accent | Compare its smaller adult scale and current size choices | View Ember Tetra |
| Neon Tetra | Cool blue and red contrast | Compare temperature, source water and available size grades | View Neon Tetra |
| Cardinal Tetra | Longer blue-red stripe and stronger red field | Compare warmer-water preferences and current variant range | View Cardinal Tetra |
Mixing several small shoaling species can create undersized groups competing in the same zone. One well-sized shoal is often calmer and visually stronger than several minimum groups. Choose the combination your aquarium can support at adult size.
Eligible first-time customers can use WELCOME10 for 10% off, one use per customer, under the offer shown on our special-offers page. Shoal discounts are separate automatic quantity tiers shown by the live buy box. Check the basket before payment because current eligibility and discount interaction are controlled by the published offer and Shopify checkout.
Live fish are packed and sent under the delivery process described on our policy pages. The Live Arrival Guarantee covers qualifying same-day arrival problems subject to the current evidence and attendance requirements. Read those terms before ordering and be present for the confirmed delivery window.
Stock quantity is live and can change. A product being orderable does not remove the need to prepare the aquarium, and a promotion should never be the reason to overstock. Choose the size and group that fit the mature tank.
This listing separates accepted species evidence, supplier trade data and our practical store recommendations. The main references are the FishBase species summary for Hyphessobrycon flammeus, the OATA tetras and pencilfish care sheet, the 2014 species redescription and the matching Eschmeyer's Catalog of Fishes reference record.
Ranges in reference databases describe reported biology and should not be read as permission for rapid swings. Our narrower 22-26°C, pH 6.5-7.5 and 4-12 dGH targets are practical captive-care recommendations within the documented envelopes. Supplier size and colour labels remain trade descriptions, not taxonomic evidence or guarantees about one dispatched fish.

22–26°C · pH 6–7.5 · 60L

24–28°C · pH 5–6.5 · 30L

24–28°C · pH 6.5–7.5 · 120L

24–27°C · pH 6–8 · 80L

22–28°C · pH 5.5–7.5 · 60L

18–26°C · pH 6.5–8 · 30L

23–27°C · pH 7.4–8.4 · 1000L

20–24°C · pH 7–8 · 45L

24–28°C · pH 5.5–7 · 60L

18–25°C · pH 6–8 · 100L

24–28°C · pH 7–8 · 120L

18–28°C · pH 6.5–8 · 20L

22–26°C · pH 6–7.5 · 60L

24–28°C

24–28°C · pH 7.5–8.5 · 500L

22–28°C · pH 7–8.5 · 10L

24–27°C · pH 7.5–9 · 250L

24–28°C · pH 8–9 · 300L

20–25°C · pH 6–7.5 · 80L

24–28°C · pH 5.5–7 · 60L

26–30°C · pH 5.5–7 · 60L