ABSTRACThe present investigation aimed to study species composition, condition factor, growth and feeding habits of Orechromis niloticus (Linnaeus, 1758), Orechromis aureus (Steindachner, 1864), Tilapia zillii (Gervais, 1848) and Sarotherdon galilaeus (Linnaeus, 1758) in Abu-Zaabal Lakes, Egypt. The abundance of different species was seasonally fluctuated. It was found that O. aureus is the most common species constituting about 50.0%, followed by S. galilaeus, while O. niloticus ranked as the 3 rd species in the total catch. The highest value of the exponent "b" of length-weight relationship and condition factor "K" was recorded for T. zillii and the lowest for O. aureus. The valve of (K) was inversely related to the size of O. aureus and O. niloticus, and tends to be fairly constant in T. zillii and S. galilaeus. All cichlid species attained their highest growth rates in length during the first year of life, after which a gradual decline was noticed with further increase in age. O. niloticus had the highest growth rate than the other three species. The parameters of Von Bertalanffy growth model were estimated as L ∞ = 34. 59, 45.23, 39.88 and 30.65