We have observed generally that C. striata is much more aggressive toward conspecifics in a tank than is C. micropeltes, so we suspect that much of the mortality was due to these aggressive encounters. Studies with other species have often shown limited ability to replace FM with SBM, e.g., 30–58% replacement of FM in Paralichthys olivaceus (Saitoh et al., 2003; Choi et al., 2005), 40% in Myxocyprinus asiaticus (Yu et al., 2013), but up to 83% in Morone chrysops × Morone saxatilis hybrids (Rombenso et al., 2013).