Saputra, F., Zulfadhli, Z., Nasution, M. A., Syarif, A. F., Maftuch, M., Abdan, M., Sofian, S., & Islama, D. (2026). Effect of different stocking densities on growth performance and gut villi histology of endemic ornamental fish (Betta rubra) in the biofloc technology. International Journal of Aquatic Biology, 14(4), 1–18. https://doi.org/10.22034/ijab.v14i4.2862