In this study, hypochlorite (liquid bleach, NaOCl) was used for Artemia salina cysts decapsulation as a decapsulation method which saves cost and labor because of increasing the hatching rate and speed. Cysts were removed from hypochlorite solution after 15 min. The stocking density in each hatching systems were 1gm cysts per 1L, replicated three times. The treatments were maintained at 25‰, 30‰, 35‰ and 40 ‰ saline solution and the pH between 7.5 - 8.5 respectively. A uniform temperature of 28ºC was maintained for all the treatments throughout the study period. However, among the treated cysts, the best hatching rate (83±1.7%) was achieved in cysts treated with (liquid bleach, NaOCl). Hatching efficiency of the cysts in different salinity levels was studied and described in this paper in salinity range of 25‰ to 40‰. Maximum hatching efficiency was recorded in the water having 30‰. The aim of this paper is to study the hatching efficiency of Artemia cysts in varying salinity decapsulation conditions.