We study the effects of the heavy metals cadmium and nickel on the survival of resting eggs of Moina macrocopa (Crustacea: Cladocera) and the parameters of the life cycle of hatchlings. It was shown that resting eggs of cladocerans M.macrocopa had a high resistance to heavy metals. Survival of resting eggs and life cycle parameters (lifespan, juvenile growth rate, the number of hatched clutches and net reproductive success) of hatchlings from dormant eggs that had been exposed to heavy metals in a wide range of concentrations (from baseline to 60-70 g/L) did not differ from control eggs and animals.