Borneo Redline Halfbeak

Hemirhamphodon tengah

Borneo Redline Halfbeak is a peaceful top swimmer. Keep as a harem of 6+.

PeacefulTop swimmerKeep as a harem of 6+Intermediate – Advanced

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Quick facts

Adult size: ≤ 2.4" (≤ 6 cm)
Aquarium size: 14 US gal (54 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
Care level: Intermediate – Advanced
Temperament: Peaceful
Swimming zone: Top swimmer
Temperature: 75–81°F (24–27°C)
pH: 4–6
GH: 1–8 dGH
Diet: Carnivore
Lifespan: up to 3 years
Group behavior: Keep as a harem of 6+

Care requirements

Care level: Intermediate – Advanced.

Lifespan: up to 3 years.

Aquarium size and space needs

Minimum aquarium size: 14 US gal (54 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length. Plan the layout and stocking within that limit.

Water parameters

Suitable water: temperature 24–27 °C, pH 4–6, GH 1–8 dGH.

Temperament and compatibility

Borneo Redline Halfbeak is peaceful and suits calm community fish.

Swimming zone and behavior

This fish uses the upper part of the aquarium, so leave enough surface space for movement and feeding.

Feeding

Use foods that suit a meatier diet and avoid combining it with fish small enough to be treated as food.

Offer floating foods and small live insects; food on the bottom is not taken.

Before adding this fish

Plan for an aquarium of 14 US gal (54 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length.
Make room for its social group.
Avoid aggressive or highly competitive fish.
Keep as a harem of 6+.
Offer a varied diet suited to this species’ documented feeding habits.

Natural habitat and origin

Origin: Indonesia.

Similar fish profiles

Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.

Arowana Tetra Gnathocharax steindachneri Similar care level Same temperament Same swimming zone Beginner – Intermediate ≤ 2" (≤ 5 cm) 73–82°F (23–28°C) African Banded Barb Barbus fasciolatus Similar care level Same temperament Same swimming zone Beginner – Intermediate ≤ 2.4" (≤ 6 cm) 68–79°F (20–26°C) Archer Halfbeak Nomorhamphus sagittarius Same family Similar care level Same temperament Beginner – Intermediate ≤ 2.9" (≤ 7.3 cm) 75–82°F (24–28°C) Bintan Licorice Gourami Parosphromenus bintan Similar care level Same temperament Same swimming zone Intermediate ≤ 1" (≤ 2.6 cm) 72–82°F (22–28°C) Black Darter Tetra Poecilocharax weitzmani Similar care level Same temperament Same swimming zone Advanced ≤ 2" (≤ 5 cm) 70–82°F (21–28°C) Black-winged Hatchetfish Carnegiella marthae Similar care level Same temperament Same swimming zone Intermediate – Advanced ≤ 1.1" (≤ 2.9 cm) 68–82°F (20–28°C)

FAQ

How large does Borneo Redline Halfbeak get?

Borneo Redline Halfbeak reaches ≤ 2.4" (≤ 6 cm).

What aquarium size does Borneo Redline Halfbeak need?

Use an aquarium of at least 14 US gal (54 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length.

Is Borneo Redline Halfbeak peaceful?

Yes. Borneo Redline Halfbeak is recorded as peaceful and is best planned with calm community fish that do not harass it or dominate the feeding area.

What temperature is suitable for Borneo Redline Halfbeak?

Keep it between 24 to 27 °C.

Should Borneo Redline Halfbeak be kept alone or in a group?

Borneo Redline Halfbeak: Keep as a harem of 6+.