Centrarchid Fishes: Diversity, Biology, and Conservation by Cooke & Philipp says for juvenile LMB, a diet of 7-13% lipid is sufficient for grown in a diet of 40% protein. Lepomis suggested best at 16% lipid. Interestingly, they cite Hoagland who says that in a closed system with no other food sources, Lepomis got best growth with 44% protein and 8% lipid.
