Ambastaia sidthimunki
The dwarf chain loach is a small, active botiid with a chain-like lateral pattern. It should be kept in groups of at least six—social stress and hiding increase in small numbers. Constantly explores the bottom and decor; peaceful toward most community fish but may nip long fins if underfed or crowded. Sand substrate and smooth-edged rock piles suit their foraging.
Sinking granules; frozen daphnia, bloodworm, and brine shrimp; occasional vegetable tabs.
Frequency: 2× daily
Thin when underfed—watch body profile; small frequent feeds beat one large dump.
Native Region: Thailand (Mae Klong basin)
Shallow rocky streams with moderate flow and leaf litter.
Footprint matters; moderate flow; plants and driftwood for breaks in sight lines.
Activity Level: High
Schooling Size: 6+ recommended
Playful in groups—may “dance” and chase within the shoal harmlessly.
Difficulty: Difficult
Type: Egg scatterer
Sexual Dimorphism: Subtle; females rounder when mature.
Commercial breeding limited; wild collection history—prefer tank-raised stock.
Substrate: Sand
Plant Safe: Yes
Smooth rocks; avoid sharp gravel that damages barbels.
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