<![CDATA[Tahfidz Qur'an Hidayatullah Gambesi Islamic Boarding School is an Islamic boarding school that supports skill development in the field of entrepreneurship, such as tilapia cultivation. However, the obstacles faced are low production yields, very high feed costs, and the lack of knowledge and skills of students in fish farming. The aim of this activity is to improve skills in cultivating tilapia using the biofloc system and marketing the cultivation products to students. This activity will be carried out from July to October 2023 at the Tahfidz Qur'an Hidayatullah Gambesi Islamic Boarding School, Ternate City, North Maluku. The activity stages include: providing a complete set of cultivation tools; training and assistance in biofloc system tilapia cultivation; feed management; water quality; and marketing production results. Data collection techniques through questionnaires were given to students before and after training and providing material. The training participants consisted of 17 junior high school (SMP) students in grades 2 and 3. The results of the activity showed that there was an increase in the knowledge and skills of students at the Tahfidz Qur'an Hidayatullah Islamic Boarding School regarding tilapia cultivation using the biofloc system by 71%. The results of this activity also show that students are interested in developing a biofloc system for tilapia cultivation. It is hoped that this activity can increase students' entrepreneurial interest, increase tilapia fish production, and become an example for other Islamic boarding schools in North Maluku. References Avnimelech, Y. (2012). Biofloc technology-a practical guide book (2nd ed.). Baton Rouge, LA (USA): The World Aquaculture Society. BPPP [Balai Pelatihan dan Penyuluhan Perikanan] Kota Ternate. 2021. Profil Kelompok Perikanan, Kelompok Usaha Bersama 02. Badan Riset dan SDM Kelautan dan Perikanan, Kementerian Kelautan dan Perikanan. Chalik A. 2022. 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