In light of the current challenges of climate change and unprecedented temperature rises, which have resulted in temperature fluctuations, increased salinity in groundwater, and rising prices of fish feed materials for the production of marine-farmed fish, Egypt has begun studying the acclimatization and breeding of hybrid red tilapia to produce high-quality, fast-growing fish that can withstand a wide range of salinity variations, ranging from 0 parts per thousand to 40 parts per thousand, with normal growth rates. Furthermore, these fish feeds contain tilapia feed with a protein content not exceeding 32% and a crude fat level not exceeding 7%. These fish feeds achieve FCR 1.2: 1, thus achieving a lower cost compared to the production of other marine fish species, such as sea bream and sea bass. This, in turn, provides fish protein at reasonable prices, given the challenges facing the world today.