Evezard's Stone Loach

Indoreonectes evezardi is a small, cryptically patterned nemacheilid loach native to the rivers of peninsular India, particularly the Western Ghats and Deccan Plateau river systems. Its mottled brown-and-cream patterning provides near-perfect camouflage against the gravel and rock substrates of its native habitat. The species is part of a taxonomically complex group of South Indian river loaches and has occasionally appeared in the trade as a bycatch species alongside other Indian hill-stream exports.

In the aquarium, I. evezardi is a hardy and adaptable species by hillstream standards, tolerating a somewhat broader range of temperatures and flow rates than the most demanding rheophilic specialists. It is active during daylight hours and scavenges energetically across the substrate. Small frozen foods, sinking pellets, and biofilm all feature in its natural diet.

The species is peaceful and social and benefits from being kept in groups of four or more. Its cryptic patterning means it is easily overlooked in a busy aquarium, but patient observation reveals an engaging and lively fish with distinct individual character. It is a sensible choice for keepers interested in Indian hillstream biotopes who want a less demanding alternative to Glyptothorax species.

Water: 20–26°C, pH 6.5–7.5, GH 4–15, KH 2–8; moderate flow and good oxygenation; one of the more temperature-tolerant hillstream species. Tank: 80 L minimum; gravel substrate with smooth boulders and hiding crevices; moderate directional flow from powerhead or HOB filter. Feeding: Omnivore — sinking micro-pellets, frozen daphnia, bloodworm, brine shrimp; scavenges efficiently across the substrate. Breeding: Not documented in captivity; condition with water changes and mild cooling; likely a gravel scatter-spawner. Compatibility: Peaceful; good community species for Indian hill-stream biotopes alongside small barbs, danios, and other loaches.