Smoky translucent grey with a black shoulder patch outlined in pale blue, and males that fence with each other using nothing but spread fins. All display and no damage.
Temperament
Common health issues
- Ich (white spot)
- Fin rot
- Swim bladder disorder
Care at a glance
- ExerciseModerate
An active swimmer that appreciates open swimming space.
- GroomingRoutine tank care
Weekly partial water changes keep them in top shape.
- Living spaceNano-tank friendly
Happy in a small, stable, well-filtered tank.
- Owner experienceSome experience helps
A little know-how makes life smoother.
- Commitment4โ6 years
Plan for a long, loving relationship.
Health to watch: Ich (white spot) ยท Fin rot ยท Swim bladder disorder
๐ Care guide
The Black Phantom Tetra (Hyphessobrycon megalopterus) comes from the Guapore and Paraguay basins and reaches about 4 to 5 cm. Males are smoky grey with tall black-tinted fins; females are lighter with reddish pelvic and anal fins. The black shoulder blotch edged in iridescent blue is present in both sexes. A group of eight or more needs 80 litres or more at 22-28C, pH 6.0 to 7.5, with planting, wood and diffused light. Feed flake, micro pellets and frozen daphnia, cyclops and brine shrimp. Its most enjoyable trait is the male sparring display: two males face off side by side with every fin fully spread, holding the pose for a few seconds before separating, with no contact and no injury. It is peaceful with other species, does not nip, and suits a planted community with rasboras, corydoras and dwarf cichlids. Keep several males so the display behaviour actually happens, and keep the tank shaded so the smoky colouring shows properly.
Frequently asked questions
How active is a Black Phantom Tetra?
Moderate. An active swimmer that appreciates open swimming space.
How much maintenance does a Black Phantom Tetra need?
Routine tank care. Weekly partial water changes keep them in top shape.
What tank size does a Black Phantom Tetra need?
Nano-tank friendly. Happy in a small, stable, well-filtered tank.
Is a Black Phantom Tetra a good fit for first-time owners?
Some experience helps. A little know-how makes life smoother.
How long do Black Phantom Tetra live?
4โ6 years. Plan for a long, loving relationship.
What health issues affect the Black Phantom Tetra?
Keep an eye out for Ich (white spot), Fin rot, Swim bladder disorder. These are worth raising with your vet, along with any screening they recommend.
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