Sabu, D. M., Lukas, A. Y. H. and Salosso, Y. (2022) “Ammonia reduction by different thickness coral shard filter in cultivation of Catfish (Pangasius sp)”, IJOTA (Indonesian Journal of Tropical Aquatic), 5(2), pp. 142–149. doi: 10.22219/ijota.v5i2.22835.