Researches on aspect of biology and cultivability of recently quoted mud crab species (Potamon ebonyicum) have been conducted earlier with the aim to enhance population through aquaculture. The need to ensure availability of dependable seed stock has necessitated research into early stages of the crab species. Studies were therefore carried out to determine larval behavior and response to feeding in captivity. Zoea larvae from the wild were acclimatized for 15 days and fed with two types of feed (cat fish feed and decapsulated artemia) for 21 days. Mortality rate was significantly (P< 0.05) high during the period. Population was reduced by 70% before the feeding commenced. Moulting of carapace was recorded more (4 No) in the group fed with fish feed than in the one fed with artemia (2 No.). Survival rate of larvae fed with artemia was higher (80%) than those fed with fish feed (40%). Weight gain was insignificant in the two treatments. Growth rate was higher in the larvae fed with artemia (mean 0.5mm) than in those ones fed with fish feed (mean 0.3mm). Judging by the rate of survival during acclimatization, cannibalism could be a major threat to larval culture. Subsequent investigation with combined feed might yield better results.