Dwarf Halfbeak
Dermogenys siamensis
Dwarf Halfbeak is a peaceful top swimmer.
Save this fish or add it directly to one of your aquariums.
Quick facts
- Adult size
- ≤ 2.8" (≤ 7 cm)
- Aquarium size
- 18 US gal (70 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Care level
- Beginner – Intermediate
- Temperament
- Peaceful
- Swimming zone
- Top swimmer
- Temperature
- 75–82°F (24–28°C)
- pH
- 6.5–8
- GH
- 10–20 dGH
- Diet
- Omnivore
- Lifespan
- up to 5 years
Care requirements
Care level: Beginner – Intermediate.
Lifespan: up to 5 years.
Aquarium size and space needs
Minimum aquarium size: 18 US gal (70 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length. Plan the layout and stocking within that limit.
Water parameters
Suitable water: temperature 24–28 °C, pH 6.5–8, GH 10–20 dGH.
Temperament and compatibility
Dwarf 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
As an omnivore, Dwarf Halfbeak should receive a varied diet rather than one repeated food type.
Before adding this fish
- Plan for an aquarium of 18 US gal (70 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length.
- Avoid aggressive or highly competitive fish.
- Offer a varied diet that matches this species.
Natural habitat and origin
Origin: Thailand, Vietnam.
Similar fish profiles
Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.
FAQ
How large does Dwarf Halfbeak get?
Dwarf Halfbeak reaches ≤ 2.8" (≤ 7 cm).
What aquarium size does Dwarf Halfbeak need?
Use an aquarium of at least 18 US gal (70 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length.
Is Dwarf Halfbeak peaceful?
Yes. Dwarf 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 Dwarf Halfbeak?
Keep it between 24 to 28 °C.