Analysis of water and sediment quality in Pacific white leg shrimp Litopenaeus vannamei culture with different sediment redox potential oleh Wiyoto Wiyoto, Andri Hendriana, Ridwan Siskandar, Nurul Mashita, Tangkas Mahendra, Arif Dwi Cahyo, Jibal Rizki Akbar Arzi, Salsabila Setya Aulia, Julie Ekasari