Four diets including a fishmeal-based control diet were formulated for physical characteristics as well as the feed intake assessments. The proximate compositions of the key raw materials (Table 1) and formulations as well as nutritional compositions (% dry weight basis (dwb)) of the experimental diets (Table 2) are presented below. The control diet (CTRL) had fishmeal as the main protein source whiles the test diets contained the test ingredients at 30% inclusions. All the basal ingredients used in the feed formulation were finely-ground and sieved to obtain a homogenous mixture and weighed out according to their respective formulations. Mineral and vitamin premixes were added to each diet. Pre-gelatinised tapioca flour was used as the binder and the diets pelletized with a meat grinder fitted with a 2 mm die plate. The resulting pellets were oven-dried at 40 °C for 48 h.