Dwarf Chain Loach
Dwarf Chain Loach (Ambastaia sidthimunki) is a small and exquisitely patterned loach with a complex chain-like network of dark reticulation on a pale body — a precise and intricate pattern on a fish that stays under 2 inches. IUCN Endangered in the wild. This species belongs to the loach family that includes the Clown Loach — active, social, personable fish that are most rewarding in groups. They are entertaining community fish with genuine personality.
Feeding & Care Tip: Hikari Sinking Wafers and Hikari Micro Pellets make excellent daily staples. Supplement 2–3× per week with Hikari Frozen or Freeze-Dried Bloodworms or Hikari Vibra Bites. Feed a mix of sinking and slow-sinking foods — active loaches will find food throughout the tank.
Active, social loaches that form clear group hierarchies. Keep in groups of at least five — loaches kept alone or in pairs are significantly more stressed, less colorful, and more prone to disease than properly grouped fish. Fine, smooth sand substrate protects the sensitive barbels.
Compatible with most medium-sized, peaceful community fish. Active during the day and evening — more visible than the nocturnal Kuhli Loach group. Effective snail hunters that will tackle small and medium snails.
Social loaches develop genuine hierarchy and behavioral complexity in groups — watching them establish dominance, huddle together, and explore their territory is endlessly engaging.
Care & Ideal Parameters
| Difficulty | Easy — Moderate |
| Temperament | Peaceful — active social group |
| Typical Adult Size | 2.0 inches (5 cm) |
| Min. Group Size | 8 minimum |
| Ideal Temp | 75–86°F (24–30°C) |
| Ideal pH | 6.0–7.5 |
| Ideal GH | 2–15 dGH |
| Ideal KH | 1–8 dKH |
| Staple Food | Hikari Sinking Wafers; Hikari Micro Pellets |
| Treat / Supplement | Hikari Frozen or Freeze-Dried Bloodworms; Hikari Vibra Bites |
| Origin | Ae River, northern Thailand — critically restricted natural range |
| Notes | IUCN Endangered — very restricted wild range in northern Thailand. Complex chain-link pattern. One of the smallest Botia relatives. Groups of 8+. |
