Ember tetras are small, peaceful fish best kept in a group in an established, planted aquarium. Their orange color looks striking against greenery, but their small size is not a reason to crowd them into a tiny container. Give them swimming space, gentle filtration, and food they can actually swallow.
Ember tetra care at a glance
| Requirement | Practical guidance |
|---|---|
| Scientific name | Hyphessobrycon amandae |
| Adult size | About 0.8–1 inch |
| Group | Start with 8–10 of their own species |
| Tank | 10 gallons for a focused group; 20 gallons gives more community options |
| Temperature | About 76–78°F is a useful everyday target |
| Water | Soft to moderately hard; slightly acidic to neutral conditions are a useful starting point |
| Diet | Small complete flakes or pellets, with appropriately sized frozen or live foods for variety |
Published ranges are wider than these everyday targets. Fluval’s species profile (PDF) lists 76–82°F, pH 5.5–7.0, and hardness of 1–12 degrees. Aquarium Co-Op describes a broader range for aquarium-kept fish. Ask about your supplier’s water and avoid abrupt adjustments to chase a particular number.
Appearance and behavior
Embers come from Brazil’s Araguaia drainage. They have small, somewhat translucent orange bodies; they are a different species from glowlight tetras. Mature females may look fuller than males, but color and body shape are not foolproof sexing methods.
They often spread into a loose shoal rather than swimming in a tight formation all day. A relaxed group browsing around plants is not necessarily failing to school. Constant hiding, isolation, rapid breathing, or a fish being excluded from food deserves closer attention.
Tank size and group size
Our recommendation is a 10-gallon or larger aquarium for a dedicated group of 8–10. Some care sheets allow smaller tanks, but the extra room makes planting, swimming space, and maintenance easier to balance. Choose a rectangular footprint rather than relying on height alone.
Keep one proper group instead of buying a few individuals from several tetra species. Similar-looking fish do not replace companions of their own species. A larger group also needs a larger overall stocking budget; “small fish” does not mean unlimited numbers.
For a community, see our 20-gallon stocking plans. Those are separate example combinations, not lists to merge.
Build the habitat before adding fish
Complete a fishless cycle and confirm the filter processes the chosen ammonia source, with ammonia and nitrite returning to zero. Merely running a filter in clean water for a set number of weeks is not enough. The RSPCA’s aquarium setup guidance explains why biological filtration must be established first.
Plant around the sides and back while leaving an open swimming area. Wood and suitable plants provide cover; a dark background can make the fish easier to see. Floating plants can shade part of the surface, but leave room for gas exchange and access for feeding.
Use a filter with adjustable or gentle flow and protect exposed intakes. Embers should not have to fight a jet of water continuously. Fit a lid, thermometer, and an appropriately sized heater where needed. Give the aquarium a regular light/dark schedule.
Leaves and wood may tint water, but they are not a reliable substitute for measuring hardness and pH. Do not pour in acidifying products to force soft-water conditions. If your tap water is very hard, consider a fish better suited to it or learn a controlled water-preparation method before buying embers.
Feeding tiny mouths
Offer a small complete food formulated for tropical fish: crush flakes finely or choose truly small pellets. Watch an individual take and swallow food. Repeatedly spitting out large pieces can mean the particle size is wrong, not that the fish needs more food.
Suitable small frozen or live foods can add variety. Offer modest meals once or twice a day and reduce the portion if food reaches the bottom uneaten. A good prepared food is not inherently harmful; the old claim that flakes and pellets necessarily cause digestive problems is unsupported.
Feed away from pushy tankmates and check that the smallest fish gets a share. Aqueon’s tetra guide supports a varied diet and controlled portions.
Choosing tankmates
- Small peaceful fish: pygmy corydoras or a carefully chosen honey gourami can be options in a suitably sized community with compatible water.
- Shrimp: adult Amano shrimp can be an option, but tiny shrimplets of other species may be eaten.
- Bettas: compatibility depends on the individual. Have a suitable separation plan rather than assuming a peaceful outcome.
- Larger or boisterous fish: avoid predators and persistent chasers. Even a fish described as peaceful may swallow an ember if it fits in its mouth.
Check the needs of every species separately. Do not add another shoal or a bottom-dweller simply because that area of the aquarium looks empty.
Water changes and signs of trouble
Inspect feeding, swimming, and equipment daily. Test regularly, especially after adding animals or changing filtration. Carry out partial water changes with conditioned, temperature-matched water and remove accumulated debris without replacing all biological filter media at once.
Color alone is not a diagnosis. Newly introduced fish can look pale, but prolonged fading together with weight loss, clamped fins, sores, or unusual breathing calls for investigation. Check water quality first and seek aquatic veterinary advice if illness persists. Our abnormal bottom-resting guide covers initial checks.
Breeding: eggs, not pregnancy
Ember tetras scatter eggs and do not provide parental care. A female holding eggs is not pregnant in the livebearing sense. Adults may eat eggs or fry, so an occasional baby in a planted tank is different from a dependable breeding method.
For a deliberate attempt, prepare a separate mature breeding setup with gentle filtration, protection for the eggs, and very small first foods ready before spawning. Newly swimming fry may need infusoria or appropriately fine fry food before they can take larger items. Raising them requires frequent observation and careful water management.
Do not sharply change pH or temperature to force spawning. Learn routine adult care first; a healthy, settled shoal is already a rewarding aquarium.
