Red Phantom Tetra (Hyphessobrycon sweglesi) 10-Pack - Live tropical fish for sale UK

Hyphessobrycon sweglesi

X Red Phantom Tetras - UK

Beginner Friendly
Peaceful
£20.99In Stock

Bright Red Phantom Tetras add colour and calm movement to community aquariums. Moderate care and ideal for shoals. Order today with UK delivery.

Community FishFreshwater FishLive FishModerate CarePeacefulShoaling FishTetraUK

Care at a Glance

Scientific Name
Hyphessobrycon sweglesi
Adult Size
4 cm
Lifespan
5 years
Care Level
Easy
Temperament
Peaceful
Temperature
23–28°C
pH Range
5.5–7
Hardness
2–10 dGH
Minimum Tank
80L
Diet
Flakes, micro pellets, small live foods

Premium Quality

Healthy, vibrant fish from trusted suppliers

Expert Care

Detailed care guides and support

Live Arrival Guarantee

Your fish arrives healthy or we'll replace it

Acclimated

Properly quarantined and ready for your tank

Quick Care Guide

Temperature
23–28°C
pH Range
5.5–7
Minimum Tank
80L
Adult Size
4 cm
Lifespan
5 years
Care Level
Easy
Temperament
Peaceful
Diet
Flakes, micro pellets, small live foods
Water Hardness
2–10 dGH
Tank Region
Middle

Water Parameters

Maintain these water conditions for optimal health and vibrant colors

Temperature
23–28°C
23°CIdeal Range28°C
pH Level
5.5–7
5.5Ideal Range7
Water Hardness
2–10 dGH
2 dGHIdeal Range10 dGH

Why Choose This Fish?

Bright Red Phantom Tetras add colour and calm movement to community aquariums. Moderate care and ideal for shoals. Order today with UK delivery.

Red Phantom Tetras are one of those rare small characins that look refined rather than flashy. Their soft ruby body colour, dark shoulder patch, and elegant finnage give them a calm, classic South American look that suits almost any peaceful community aquarium. If you are shopping for tropical fish UK hobbyists can keep with confidence, Hyphessobrycon sweglesi is a smart choice. These fish stay around 4 cm, live up to 5 years in good conditions, and are widely considered red phantom tetras for beginners because they are hardy once settled, peaceful in groups, and adaptable to a well-managed home aquarium. See our detailed photos showing body colour, fin shape, and the black humeral marking that helps answer common questions like what red phantom tetras look like and what red phantom tetras do i have.

In the right setup, Red Phantoms show excellent schooling behaviour, subtle social displays, and richer colour than many people expect from a small tetra. They are ideal for aquarists building a planted display and asking practical questions such as red phantom tetras tank size, red phantom tetras temperature, red phantom tetras water parameters, and how to care for red phantom tetras. Their peaceful nature also makes them a standout aquarium tetra UK keepers can mix with other calm species. If you want a beautiful shoaling fish that adds movement without chaos, Red Phantom Tetras are an excellent choice for a balanced, natural-looking community tank.

🔹 Quick Facts

  • Scientific Name: Hyphessobrycon sweglesi
  • Care Level: Easy
  • Min Tank Size: 80 litres (about 21 gallons)
  • Temperature: 23-28°C (73-82°F)
  • pH Range: 5.5-7.0
  • Lifespan: Up to 5 years
  • Temperament: Peaceful
  • Diet: Omnivore

Classification

  • Order: Characiformes
  • Family: Characidae
  • Genus: Hyphessobrycon

The Red Phantom Tetra belongs to the large South American characin group, a family well known in the aquarium hobby for active schooling fish with strong colour and manageable adult size. In the trade, this species is valued for its calm temperament and elegant contrast pattern rather than neon-bright metallic shine. It sits alongside many popular community tetras and is especially appreciated by aquarists who prefer natural aquascapes over high-energy mixed tanks.

Where Do Red Phantom Tetras Come From? Natural Habitat Explained

The red phantom tetras habitat is the Orinoco River drainage in South America, especially in parts of Colombia and Venezuela. In the wild, the red phantom tetra habitat includes slow-moving tributaries, flooded forest margins, and calm blackwater or tea-stained streams rich in leaf litter and submerged roots. This matters in the aquarium because fish taken from these environments tend to feel safest in dimmer light, darker décor, and soft, slightly acidic water.

Understanding the red phantom tetra wild environment helps answer many care questions. These fish are not from a tropical fish pond UK setting, and they are not suitable for a tropical fish outdoor pond uk project because they need stable indoor warmth year-round. They come from warm freshwater habitats where tannins, plant cover, and gentle flow are common. That is why a strong current and bright bare tank often leave them washed out and nervous.

A good red phantom tetras care guide starts by copying nature: soft water, groups of at least 6, and plenty of visual cover. If you are researching tropical fish care in uk homes, this species adapts well as long as temperature and water quality stay stable. They are not wild tropical fish uk in the sense of outdoor survivability; they are true tropical aquarium fish that need heated indoor systems. Their natural diet includes tiny invertebrates, organic debris, and microscopic foods drifting through the water column, which explains why they appreciate variety in captivity.

Because they are peaceful and small, Red Phantom Tetras have remained popular for decades. They are not difficult to keep, but they do look and behave better when their surroundings match their origin. Hobbyists reading a red phantom tetras care sheet or asking how to care for red phantom tetras should focus less on chasing bright lights and more on creating a calm South American scene with plants, wood, and shaded swimming space.

💡 Expert Tip

Mimicking the natural habitat of Red Phantom Tetras improves colour, reduces skittish behaviour, and encourages tighter shoaling. In practice, that means dark substrate, driftwood, floating cover, and gentle filtration rather than a bright, open tank.

How to Set Up the Perfect Tank for Red Phantom Tetras

The best red phantom tetras tank setup is an 80-litre or larger aquarium with plants, open midwater swimming room, and stable warm water. While the red phantom tetras minimum tank size is 80 litres, a larger aquarium gives a more secure school, better colour, and easier water stability. If you are comparing red phantom tetra tank size recommendations, think beyond survival and aim for display quality. A group of 10 in a 90-120 litre planted aquarium looks far more natural than a small group in a cramped tank.

Tank Size Requirements

The usual question is simple: what is the right red phantom tetras tank size? For a starter group of 6 to 8 fish, 80 litres is the floor. For a better community setup with other small species, 100 litres or more is preferred. This also helps if you are using an aquarium fish calculator uk tool, because schooling fish need horizontal swimming length and social space, not just litres on paper. If a beginner asks what is a good size fish tank for a beginner, an 80-100 litre tropical setup is far easier to keep stable than a tiny nano tank.

Water Parameters

Correct red phantom tetras water parameters are straightforward. Aim for pH 5.5-7.0, hardness 2-10 dGH, and a temperature of 23-28°C. The ideal red phantom tetras water temperature for everyday care is around 24-26°C, which also suits many other peaceful South American species. If you are checking red phantom tetra water temperature or red phantom tetra temperature, staying in the middle of the range usually gives the best balance of activity and long-term health.

23-28°C
Temperature
5.5-7.0
pH
2-10 dGH
Hardness
80L+
Minimum Tank

For UK fishkeepers, this also answers common searches around tropical fish tank temperature uk, tropical fish tank temperature uk celsius, and tropical fish water temperature uk. A steady heater setting is more important than chasing the warmest number. Sudden drops stress tetras quickly. The preferred red phantom tetras water hardness is soft to moderately soft water, and they usually show their best colour in slightly acidic conditions.

Filtration

Good red phantom tetras filtration needs are moderate. They do not want a blasting river current, but they do need clean, oxygenated water. A gentle internal filter or a well-sized external filter with spray bar works well. This species is a clear example of why the answer to can tropical fish live without a filter is generally no in a normal home aquarium. Stable biological filtration helps prevent ammonia and nitrite spikes, and that stability is what keeps small tetras thriving.

Substrate, Plants and Decor

The ideal red phantom tetras aquarium setup uses dark sand or fine gravel, driftwood, and dense planting around the sides and back. Red phantom tetras in planted tank displays look exceptional because plants soften light and provide security. Fine-leaved stems, floating plants, and broad-leaf background species all work well. If you enjoy other South American schooling fish, you can also browse species like X Glass Bloodfin Tetras - Prionobrama or X Royal Tetras - Inpaichthys Kerri for a similar natural aquascape theme.

Use wood, leaf-style décor, and broken sight lines. This reduces chasing and improves confidence. A planted aquarium also helps if you are wondering how many red phantom tetras in a tank, because visual barriers spread the group and lower stress. Keep the centre open for swimming while giving the edges structure.

Quick Setup Checklist

  • Choose an aquarium of at least 80 litres
  • Keep a school of 6+, ideally 10 or more
  • Set heater to 24-26°C for everyday care
  • Maintain soft to moderately soft, slightly acidic water
  • Use gentle but efficient filtration
  • Add plants, driftwood, and shaded areas
  • Cycle the aquarium fully before adding fish

💡 Pro Tip

Always cycle the tank for 4-6 weeks before adding Red Phantom Tetras. Small characins are often sold as easy fish, but they react badly to immature water conditions. A mature filter and stable temperature make a huge difference in colour and survival.

What Do Red Phantom Tetras Eat? Complete Feeding Guide

The red phantom tetras diet is omnivorous. In nature they pick at tiny crustaceans, insect larvae, and organic matter. In the aquarium, the best results come from mixing quality flakes or micro pellets with frozen or live foods several times each week. If you are asking what red phantom tetras eat, think small, varied, and easy to swallow.

Staple Foods

A practical red phantom tetras feeding guide starts with a fine tropical flake or micro pellet as the staple. The ideal red phantom tetra diet should contain protein for growth and colour, plus plant-based ingredients for digestive balance. Many keepers searching for the best tropical fish food uk options do well with a small-particle community formula designed for tetras and rasboras.

Supplemental Foods and Treats

For stronger colour and breeding condition, offer frozen daphnia, baby brine shrimp, cyclops, and finely chopped bloodworm. If you are wondering can red phantom tetras eat shrimp, they can eat tiny shrimp-based foods and baby brine shrimp, but very small ornamental shrimplets may be seen as food. Adult dwarf shrimp are usually safer in a heavily planted aquarium. They are not true algae eating tropical fish uk aquarists buy for cleanup, so do not expect them to control algae.

Feeding Frequency and Portion Control

People often ask how many times a week do you feed tropical fish, how much red phantom tetras eat, and how much red phantom tetras need to eat. Feed small portions 1-2 times daily, only what the group clears in about 30-60 seconds. That answers questions like what time red phantom tetras eat, what time red phantom tetras need to eat, and when red phantom tetras eat: they are daytime feeders and do best on a consistent routine, usually morning and evening.

Time Food Amount
Morning Fine flake or micro pellet Small pinch, fully eaten within 1 minute
Evening Frozen daphnia, baby brine shrimp, or micro pellet Very small portion, no leftovers

If you travel, an automatic tropical fish feeder uk model can help for short periods, but test it first to avoid overfeeding. A common concern is how long can small tropical fish go without food. Healthy adult Red Phantom Tetras can usually manage several days, but regular feeding is better than feast-and-famine cycles. If you notice why red phantom tetras not eating or when red phantom tetras stop eating, check temperature, ammonia, bullying, and recent transport stress before assuming disease.

X Royal Tetras - Inpaichthys Kerri thrive on the same small-particle foods as Red Phantom Tetras, making them easy to feed together in a peaceful South American community.
X Glass Bloodfin Tetras - Prionobrama also appreciate a varied tetra diet with flakes, micro pellets, and occasional frozen foods.

⚠️ Feeding Warning

Overfeeding causes ammonia spikes, cloudy water, and digestive stress. Small tetras do not need large meals. If food reaches the substrate uneaten, you are offering too much.

Red Phantom Tetras Appearance: Colors, Patterns & Varieties

If you are asking what red phantom tetras are supposed to look like, the classic form has a laterally compressed body, translucent fins, a dark shoulder patch, and a body colour ranging from pinkish red to deeper ruby depending on mood, sex, and water conditions. Adults usually reach about 4 cm, making them a neat midwater fish for planted aquariums.

Searches such as what red phantom tetras look like and what day red phantom tetras come out usually come from new keepers worried that shy fish are hiding. In reality, confident Red Phantoms spend much of the day in open water once settled, especially in groups of 8 or more. Their colour is often stronger over dark substrate and among plants.

Red phantom tetras male vs female differences are useful to know. Males are usually slimmer, more intensely coloured, and often show longer, more pointed dorsal fins. The red phantom tetra female is typically rounder through the body, especially when carrying eggs, and may show a slightly different dorsal fin pattern. If you are comparing red phantom tetra male female traits, body depth and fin shape are the easiest clues.

Questions like what size fish should i get and what day red phantom tetras are born usually appear when people are trying to identify juveniles. Young fish can be paler and less defined than adults, so colour develops with maturity, diet, and confidence. In our product image tropical-fish-uk.webp, you can see the balance of red body colour and dark shoulder marking that makes this species so distinctive in a calm, planted layout.

What Fish Can Live With Red Phantom Tetras? Compatibility Guide

One of the biggest reasons people choose Red Phantoms is that they fit well into a peaceful community. Common questions include are red phantom tetras aggressive, can red phantom tetras aggressive, and why red phantom tetras aggressive. In normal conditions they are peaceful, but males may spar lightly with each other, especially in small groups or bare tanks. This is display behaviour more than real fighting.

If you are wondering when red phantom tetras aggressive, what time red phantom tetras aggressive, or what day red phantom tetras aggressive, the answer is usually during feeding competition, social ranking, or breeding displays. A larger school spreads attention and reduces tension. So yes, can red phantom tetras live together and could red phantom tetras live together? Absolutely—they should be kept together. A group of 8-12 is far better than a pair or trio.

Ideal Tank Mates

The best red phantom tetras tank mates are other calm midwater or bottom-dwelling fish that enjoy similar water conditions. Good red phantom tetras compatible fish include Corydoras, small rasboras, peaceful other tetras, and gentle dwarf cichlids in larger tanks. If you enjoy browsing community tropical fish uk options, suitable companions from our range include X Glass Bloodfin Tetras - Prionobrama, X Royal Tetras - Inpaichthys Kerri, Sailfin Tetra - Crenuchus Spilurus -, and Splash Tetra - Copella Arnoldi -.

Many aquarists also ask whether this is the best tetra for community tank setups. It is certainly one of the better choices if you want a tetra that is attractive but not hyperactive. They generally mix well with other peaceful characins and catfish. Red Phantoms are also a nice alternative if you are comparing red phantom tetras vs neon tetra or red phantom tetras or ember tetra for a darker, more natural aquascape.

Species to Avoid

If you are researching what tropical fish are aggressive, avoid pairing Red Phantoms with fin-nippers, large predatory characins, or boisterous cichlids. Species such as Bucktooth Tetra - Exodon Paradoxus - are not suitable tank mates because they are far too nippy and intense for a calm tetra school. Likewise, X Gar Characins - Ctenolucius Hujeta are predatory and not appropriate companions for small tetras. Large fish such as Piaractus Brachypomus - Red-Bellied Pacu - or X Red-Bellied Pacu - Piaractus Brachypomus are also unsuitable once grown.

Questions like what red phantom tetras fin nippers, what day red phantom tetras fin nippers, and which red phantom tetras fin nippers usually come from tanks that are overcrowded or under-grouped. In a proper school with cover, they are not known as serious fin nippers. As for can red phantom tetras live with betta, it is possible in some larger, calm, heavily planted aquariums, but temperament varies by individual betta and it is not my first recommendation.

Species Compatible? Notes
X Royal Tetras - Inpaichthys Kerri ✅ Yes Similar size and peaceful temperament for planted communities
Splash Tetra - Copella Arnoldi - ⚠️ Caution Works in larger calm tanks; match water quality and avoid overcrowding
Bucktooth Tetra - Exodon Paradoxus - ❌ Avoid Too aggressive and fin-nippy for Red Phantom Tetras

For invertebrates, adult shrimp and snails may coexist in a dense planted tank, but tiny shrimplets can be eaten. That is normal small-omnivore behaviour. If you are choosing red phantom tetras with other fish, think gentle, similarly sized, and non-territorial. This species does best in a relaxed aquarium where the whole community shares similar soft-water preferences.

💡 Compatibility Tip

Always quarantine new arrivals for 2-4 weeks before adding them to a community aquarium. This protects established fish from parasites and gives shy tetras time to settle without immediate competition.

How to Breed Red Phantom Tetras: Complete Breeding Guide

Red phantom tetras breeding is considered moderate rather than difficult, but success depends on soft water, careful conditioning, and protecting the eggs from hungry adults. If you are interested in breeding phantom tetras at home, start with a separate spawning tank rather than hoping for fry survival in a busy community setup.

Breeding Setup

To learn how to breed red phantom tetras, prepare a small breeding aquarium of around 20-40 litres with very soft, slightly acidic water, subdued lighting, and fine-leaved plants or spawning mops. The ideal red phantom tetra breeding setup uses water near the lower end of the hardness range and a temperature around 25-27°C. Condition adults with live and frozen foods for 1-2 weeks before introduction.

Sexing and Behaviour

Red phantom tetras male vs female identification becomes especially important here. Males are slimmer and more colourful, while females are fuller-bodied. During red phantom tetra breeding behavior, males display to females with fin flaring and short chases among plants. If you are asking what day red phantom tetras lay eggs, what time red phantom tetras lay eggs, or when red phantom tetras lay eggs, spawning often happens early in the day after conditioning and a partial water change with slightly cooler soft water.

Egg Care and Fry

The adults scatter adhesive red phantom tetra eggs among plants or mops and offer no parental care. Remove the parents after spawning because they will eat the eggs. If you are wondering what day red phantom tetras have babies, the eggs usually hatch in about 24-36 hours depending on temperature, and fry become free-swimming a few days later. A newly free-swimming red phantom tetra baby needs infusoria or liquid fry food first, then newly hatched brine shrimp as it grows.

People also ask how often red phantom tetras lay eggs. Well-conditioned adults may spawn repeatedly, but frequent spawning should not come at the expense of female condition. Feed well between attempts. The biggest problems in red phantom tetra breeding are infertile eggs, fungus, and fry starvation from food that is too large.

Advanced Breeding Tip

Use a bare-bottom spawning tank with a mesh or marbles under the spawning site so eggs fall out of reach. This greatly improves hatch rates because Red Phantom Tetras are enthusiastic egg eaters once spawning ends.

Red Phantom Tetras vs Similar Species: Which Should You Choose?

Comparison matters because many small tetras look suitable on paper but behave differently in real aquariums. If you are choosing between classic community species, Red Phantoms stand out for their gentle social displays, warm red tones, and preference for calm planted layouts.

Feature Red Phantom Tetra Neon Tetra
Max Size 4 cm 4 cm
Care Level Easy Easy
Temperature 23-28°C 22-26°C
Price £20.32 Varies
Best For Calm planted South American community tanks Bright mixed community displays

When people compare red phantom tetras vs neon tetra, the choice often comes down to style. Neons are brighter and more instantly visible, while Red Phantoms look more subtle and natural. If you want a fish that suits tannin-stained aquascapes and softer lighting, Red Phantoms often win.

Feature Red Phantom Tetra Ember Tetra
Schooling Style Loose shoal with male displays Tight, gentle shoal
Colour Tone Ruby red with dark shoulder patch Orange-amber glow
Best Tank Size 80L+ 50L+
Best For Mixed peaceful communities Smaller planted nano-style tanks

If you are deciding between red phantom tetras or ember tetra, embers suit smaller tanks, while Red Phantoms offer more visible social behaviour and stronger contrast. Among similar species in our range, X Glass Bloodfin Tetras - Prionobrama are more transparent and active, while Sailfin Tetra - Crenuchus Spilurus - provide a more unusual shape and display style. For a darker, elegant tetra community, Red Phantoms are one of the most balanced options.

Common Health Problems in Red Phantom Tetras & How to Prevent Them

Strong red phantom tetras health starts with clean water, stable heat, and enough companions. Healthy fish show clear eyes, full finnage, steady midwater swimming, and good appetite. If you are asking which red phantom tetras are best, choose active individuals with no pinched belly, no clamped fins, and no white spots or frayed edges.

Common Diseases and Symptoms

Like many small characins, red phantom tetras diseases can include ich, bacterial fin damage, and stress-related wasting when water quality is poor. New imports may also carry internal parasites. Questions such as which red phantom tetras aggressive or has red phantom tetras aggressive can sometimes actually point to illness, because a sick or stressed fish may isolate, dart, or react unpredictably.

Treatment and Prevention

The first response to most problems is testing water, improving oxygenation, and carrying out partial water changes. Stable warmth matters, so check what time red phantom tetras seem most lethargic; if it is after overnight temperature drops, heater performance may be the issue. Quarantine all new fish before introduction. This is especially important for buyers searching tropical fish for sale near ipswich or tropical fish for sale near norwich who may be comparing local sources with delivered livestock and want confidence in health standards.

⚠️ Medication Warning

Never medicate blindly. Treat the cause, not just the symptom. Also, never use copper-based medications in tanks containing shrimp or other sensitive invertebrates, as copper can be lethal to them.

Quarantine Protocol

  • Keep new fish in a separate tank for 2-4 weeks
  • Observe appetite, breathing, and fin condition daily
  • Test ammonia, nitrite, nitrate, and temperature regularly
  • Use dedicated nets and equipment to avoid cross-contamination
  • Only move fish once they are feeding well and symptom-free

If you are asking which red phantom tetras can live together, the answer is healthy fish of similar size introduced into a stable school. Mixing weak, stressed, or isolated individuals into an established group often leads to more pressure on the newcomer. Prevention is always easier than treatment with small tetras.

Understanding Red Phantom Tetra Behavior in the Aquarium

Red phantom tetras behaviour is one of their best features. They are active but not frantic, social but not pushy, and visible without dominating the tank. In a well-designed aquarium, they spend most of their time in the middle level, weaving through plants and coming into open water to feed.

Many first-time keepers ask what day red phantom tetras are most active or what time red phantom tetras come out. They are daytime fish and usually become bolder after the lights have been on for a while, especially in dimmer setups with floating cover. A larger group always improves confidence.

If you notice sparring, it is usually harmless male posturing rather than real damage. This species is not a problem fish when kept correctly. Their natural rhythm is calm exploration, loose shoaling, and short display interactions. That is why they are so often recommended among peaceful South American community species.

Why Buy from Tropical Fish Co?

When people search tropical fish uk for sale, buy live fish online uk, best place to buy tropical fish online uk, or buy aquarium fish online uk, they are usually looking for more than stock availability. They want healthy fish, sensible packing, and clear care information. Our Red Phantom Tetras are selected for active swimming, clean finnage, and good group uniformity so they settle as a proper shoal rather than a mismatched assortment.

Before dispatch, fish are observed for feeding response and general condition, then packed for transport in insulated boxes with appropriate seasonal protection. During colder periods, heat packs are used where needed. This makes a real difference for small characins, which can lose condition quickly if chilled. Buyers comparing live fish for sale uk, buy live fish online uk free delivery, buy tropical fish online uk free delivery, and aquarium fish delivery uk searches are right to focus on packing standards as much as price.

If you want to buy red phantom tetras UK hobbyists trust, we aim to make the process clear from order to acclimation. Whether you are checking red phantom tetras for sale UK, red phantom tetras online UK, order red phantom tetras UK, red phantom tetras delivery UK, where to buy red phantom tetras UK, or even comparing red phantom tetras price UK against other sellers, the key value is receiving fish that arrive active and ready to settle. That is more important than simply finding cheap red phantom tetras UK listings with little support.

We also include practical guidance for acclimation and ongoing care, which helps answer common buyer-intent searches like tropical fish for sale, aquarium and fish for sale near me, aquarium fish for sale near me, aquarium fish for sale near me open now, and aquarium fish food for sale near me. Ordering online should still feel informed and personal. If you are trying to decide how to sell tropical fish uk or buy them responsibly, good husbandry and honest species advice matter at both ends of the process.

Why Choose Tropical Fish Co for Red Phantom Tetras

  • Selected as active schooling fish with strong shoulder marking and balanced group presentation
  • Packed for UK transit in insulated boxes with seasonal heat protection where required
  • Supported with species-specific guidance on acclimation, shoal size, feeding, and planted tank care

You Might Also Like

Build a more natural South American-style display by pairing your Red Phantom Tetras with other peaceful characins and suitable community species. X Royal Tetras - Inpaichthys Kerri add deeper blue tones to a planted setup, while X Glass Bloodfin Tetras - Prionobrama bring a lighter, more transparent contrast. For a more unusual display fish, Sailfin Tetra - Crenuchus Spilurus - offers elegant finnage and calm behaviour. If you enjoy surface activity, Splash Tetra - Copella Arnoldi - is an interesting companion in larger peaceful aquariums. Avoid unsuitable mixes with predatory or aggressive species such as X Gar Characins - Ctenolucius Hujeta or Bucktooth Tetra - Exodon Paradoxus -.