Aquarium Haven & Brisbane Discus

Black Phantom Tetra 3/3.5

Black Phantom Tetra 3/3.5 are peaceful, schooling tetras with a smoky black body and distinctive “phantom” patch that looks amazing in a planted community aquarium. These Black Phantom Tetras are around 3–3.5cm and really shine when kept in a group, making them ideal for calm, well‑filtered community tanks. The Black Phantom Tetra 3/3.5 is a striking, yet peaceful schooling fish that brings subtle colour and constant movement to a community aquarium. With their smoky grey‑black body, dark shoulder patch and contrasting fins, Black Phantom Tetras look especially good in planted tanks with softer lighting. At around 3–3.5cm, these Black Phantom Tetra 3/3.5 are a great size for adding to an established aquarium. They are active, social fish that feel most secure in a shoal and show their best behaviour when kept in a group. Appearance and Size Species: Black Phantom Tetra (Hyphessobrycon megalopterus) Colour: translucent grey to smoky black body with a dark “phantom” patch behind the gill Fins: males often show more extended, darker fins; females tend to be rounder in body Size at sale: approximately 3–3.5cm Adult size: stays small, ideal for community tanks A group of Black Phantom Tetras creates a beautiful, understated contrast to brighter species and lush green...

$8.95

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Click & CollectAvailable from Newmarket, Brisbane.

Black Phantom Tetra 3/3.5$8.95

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Expert adviceSupport from experienced aquarium keepers.

Click & CollectCollect from Newmarket, Brisbane.

Product information

Everything you need to know

Black Phantom Tetra 3/3.5 are peaceful, schooling tetras with a smoky black body and distinctive “phantom” patch that looks amazing in a planted community aquarium. These Black Phantom Tetras are around 3–3.5cm and really shine when kept in a group, making them ideal for calm, well‑filtered community tanks.

The Black Phantom Tetra 3/3.5 is a striking, yet peaceful schooling fish that brings subtle colour and constant movement to a community aquarium. With their smoky grey‑black body, dark shoulder patch and contrasting fins, Black Phantom Tetras look especially good in planted tanks with softer lighting.

At around 3–3.5cm, these Black Phantom Tetra 3/3.5 are a great size for adding to an established aquarium. They are active, social fish that feel most secure in a shoal and show their best behaviour when kept in a group.

Appearance and Size

Species: Black Phantom Tetra (Hyphessobrycon megalopterus)
Colour: translucent grey to smoky black body with a dark “phantom” patch behind the gill
Fins: males often show more extended, darker fins; females tend to be rounder in body
Size at sale: approximately 3–3.5cm
Adult size: stays small, ideal for community tanks

A group of Black Phantom Tetras creates a beautiful, understated contrast to brighter species and lush green plants.

Tank Requirements for Black Phantom Tetra 3/3.5

Black Phantom Tetra 3/3.5 are small, active schooling fish that appreciate:

Tank size: from at least 2ft+ for a small group, larger is better for bigger shoals
Décor: planted aquariums with open swimming space and some shaded or darker areas
Filtration: gentle to moderate flow with good biological filtration
Substrate: sand or fine gravel, with driftwood, plants and leaf litter for a natural look

Keep Black Phantom Tetras in groups of at least 6–8 (more if space allows) to reduce stress and encourage natural schooling and display behaviour.

Water Parameters (Guide Only)

Black Phantom Tetras are fairly hardy and adapt well if changes are slow:

Temperature: around 23–27°C
pH: roughly 6.0–7.5
Hardness: soft to moderately hard water
Ammonia & Nitrite: 0 ppm
Nitrate: kept low with regular water changes

Stable, clean water and a mature filter are key for long‑term health of your Black Phantom Tetra 3/3.5.

Feeding Black Phantom Tetra

The Black Phantom Tetra 3/3.5 is an omnivore and enjoys a varied diet:

Quality micro pellets or fine flakes for small tropical fish
Frozen or live foods such as baby brine shrimp, daphnia and finely chopped bloodworms
Occasional vegetable‑based or spirulina‑rich foods

Feeding small amounts 1–2 times per day keeps your Black Phantom Tetras active, colourful and in good condition.

Behaviour and Tank Mates

Black Phantom Tetras are peaceful schooling fish that do very well in community aquariums:

Behaviour: active mid‑water swimmers, with males often displaying to each other
Temperament: generally peaceful, ideal for calm community setups
Best kept: in shoals of at least 6–8 Black Phantom Tetra 3/3.5

Suitable tank mates include other small peaceful tetras, rasboras, Corydoras, small peaceful catfish and dwarf cichlids. Avoid large or aggressive fish that may harass or eat Black Phantom Tetras.

Important Notes

Always introduce Black Phantom Tetra 3/3.5 to a mature, cycled aquarium.
Keep them in groups for best colour, confidence and natural schooling behaviour.
Regular maintenance and good filtration help keep this species healthy long‑term.

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