Homalopteroides tweediei

Note: This species is often sold in the aquarium hobby as the Yellow Finned Hillstream Loach, although it may occasionally be confused with other Homalopteroides or Homaloptera species.

Origin

Peninsular Malaysia

Adult Size

6–8 cm (2.5–3 in)

Recommended Tank Size

75 L (20 gal) or larger

Temperature

22–26°C (72–79°F)

pH

6.0–7.5

Behavior

Peaceful • Social • Bottom Dweller

Best kept in groups of 3 or more. This species thrives in well-oxygenated aquariums with moderate to strong water movement and spends much of its time resting on rocks or grazing on hard surfaces.

Diet

Omnivore

Readily accepts:

• Biofilm
• Algae
• Frozen foods
• Small live foods
• Sinking pellets
• Gel foods

Difficulty Level

●●●○○

Intermediate

Did You Know?

Unlike many bottom-dwelling fish, the Yellow Finned Hillstream Loach uses enlarged pectoral and pelvic fins to cling to rocks in flowing water, allowing it to thrive in fast-moving mountain streams.

Ideal Water Parameters

• GH: 2–12
• KH: 1–6
• Flow: Moderate to strong
• Oxygenation: High
• Planted Aquarium: Yes
• Group Size: 3+ individuals

Compatibility

✅ Danios
✅ Rasboras
✅ Rainbowfish
✅ Garra species
✅ Other peaceful stream fish

⚠️ Requires excellent water quality
⚠️ Avoid warm, stagnant aquariums
⚠️ Best on smooth rocks and sand or fine gravel

Why This Species Is Special

• Beautiful yellow-edged fins
• Fascinating rock-clinging behavior
• Constantly active and curious
• Excellent addition to river-style aquariums
• Peaceful with other community fish

The Yellow Finned Hillstream Loach is an outstanding choice for stream-style aquariums. Its graceful movements, unique body shape, and striking yellow fins make it one of the most attractive hillstream loaches available.