Care guide · Freshwater · fish

Ember tetra

Hyphessobrycon amandae

Photo: Mbdtsmo · Source · CC BY-SA 4.0Resized and compressed; no cropping or colour changes.

The ember tetra adds a warm orange glow to a quiet planted aquarium. Hyphessobrycon amandae remains around two centimetres long and is most rewarding when a sizeable group feels confident enough to leave cover. Small size does not make it suitable for every tiny container. A mature aquarium, very fine food and calm companions matter more than collecting many different species. The fish is known from Brazil’s Araguaia drainage, but its precise natural microhabitats are less thoroughly documented than many care charts imply. This guide therefore separates established information from practical aquarium choices. Keep at least ten, provide shade alongside open swimming space, and check at every meal that even the smallest individuals are actually swallowing enough food rather than merely approaching it.

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At a glance

Temperature: 23–26 °C
pH: 5.5–7.0
GH: 4–10 °dGH
Aquarium length: At least 60 cm
Minimum aquarium volume: At least 54 L
Adult size: Approximately 2 cm
Group size: At least 10 individuals
Swimming zone: Middle
Temperament: Peaceful
Lighting preference: Subdued lighting
Cover: Plants and sheltered areas
Staple food: Fine flakes
Supplementary food: Live food, Frozen food, Finely crumbled dried natural food

Choose at least 60 cm length and approximately 54 litres gross for a dedicated group. This deliberately exceeds some published lower limits and gives greater stability and feeding visibility.

About this species

Adults reach approximately 2 cm. Their transparent fins and orange to reddish body show well under gentle lighting. Pallor may follow transport or fright and is not a diagnosis by itself: also assess appetite, breathing and position within the group. Females are often fuller than males, but selecting breeders reliably requires mature fish.

Do not confuse this tiny species with larger red tetras sold under similar common names. Its small mouth remains a central care consideration. A food labelled for tropical fish is not automatically small enough. Watch individual particles being swallowed rather than judging suitability from the package or the fishes’ initial interest alone.

Natural habitat

The species was described from the Rio das Mortes within Brazil’s Araguaia drainage. Its full distribution and use of different microhabitats remain uncertain. Quiet side waters and vegetated margins are suggested in specialist care accounts, rather than established by a complete field inventory. Sheltered edges and room for a group are sensible aquarium applications of this information.

Use plants to create shade and safe passages without allowing an uncontrolled layer of waste to accumulate. A darker background and limited direct light reduce exposure. Extremely acidic water is not a requirement inferred solely from Brazilian origin, and a practical planted aquarium should not be presented as an exact recreation of an undocumented collection site.

Aquarium and layout

Choose at least 60 cm length and approximately 54 litres gross for a dedicated group. This deliberately exceeds some published lower limits and gives greater stability and feeding visibility. Prefer at least 80 cm with a second group. Plant the margins while retaining a calm open centre.

Fine substrate, small branches and a gentle filter outlet work well. Protect the intake: even adults are tiny. Stock only a fully mature aquarium, fit a lid and avoid sudden bright lighting. Nominal litres do not replace swimming length or assessment of the complete community.

Water conditions

Our practical maintenance selection is 23–26 °C, pH 5.5–7 and approximately 4–10 °dGH. Sources report wider temperature and hardness limits, but their extremes are not used to justify a warm-water cichlid pairing. No separate KH target is sufficiently established here; with low buffering, pH must still remain stable.

Maintain undetectable ammonia and nitrite and make regular, well-matched partial changes. Avoid abrupt transitions after purchase by checking the supplier’s conditions and adapting the transfer accordingly.

Behaviour and group size

Keep at least ten, preferably more where space permits. They do not school tightly all the time; quiet dispersed browsing among plants can be normal. Persistent hiding, clamped fins or poor feeding require checks of light, water and companions. Larger fish may treat embers as prey.

Even peaceful but faster species can monopolise food. Tiny shrimplets are not entirely protected from predation. Plants are not deliberately damaged. Assess combinations through calm behaviour, adult size and actual feeding opportunities rather than relying on the word peaceful.

Feeding

Choose a complete food that can be crumbled very finely. A standard flake becomes suitable only when each fish readily swallows the pieces; large granules are not made appropriate simply by eventually softening. Give one or two small daily meals and observe consumption. Suitable small live or thawed prey add variety.

Finely ground, optionally briefly soaked dried Daphnia is a supplement, not a complete staple. Distribute food in a calm area. Overfeeding to compensate for competition mostly increases pollution; change the companion arrangement if necessary.

Breeding

Ember tetras scatter eggs and provide no parental care. A fry may occasionally survive dense planting, but adults and companions eat many eggs and larvae. A quiet separate breeding setup with fine plants, protection from the adults and a sponge filter offers greater control. Use stable soft water without abrupt changes.

Newly feeding fry need infusoria or similarly suitable microscopic food; larger nauplii follow only when their mouths allow. Deliberate breeding often fails without prepared starter food. Large rations do not solve the problem of providing appropriately sized food.