JAMES, R; SAMAPATH, K. Effects of feed and water quality (hardness) on growth in red swordtail Xiphophorus helleri fry. Indian Journal of Fisheries, India, v. 45, n. 3, p. 307–313, 2017. Disponível em: https://epubs.icar.org.in/index.php/IJF/article/view/8715. Acesso em: 22 oct. 2025.