Macrobrachium lanchesteri Ricefield Prawn

Macrobrachium lanchesteri, the Ricefield Prawn, is one of the smallest and most peaceful members of the Macrobrachium genus, native to rice paddies and slow-moving streams of Thailand, Malaysia, and surrounding Southeast Asian countries. Unlike most Macrobrachium species which are aggressive and predatory, M. lanchesteri is small enough and gentle enough to coexist with small, non-aggressive fish in community aquariums. An active scavenger and algae grazer, it helps clean the aquarium floor of uneaten food and detritus. A fascinating and underappreciated species for hobbyists who want the novelty of a Macrobrachium without the aggression concerns of larger species.

Water: pH 6.5–7.8, TDS 100–300 ppm, temperature 22–28°C; adaptable to tropical freshwater conditions. Tank: 40+ litres; planted with cover; moderate to gentle filtration. Feeding: Omnivorous scavenger; shrimp pellets, algae, blanched vegetables, frozen foods. Breeding: Small direct-developing larvae; freshwater breeding may be possible under ideal conditions. Compatibility: Generally peaceful; safe with small community fish; use caution with very small shrimp.