The research on L. vannemai shrimp sounds promising.
I am especially impressed with the reported Feed Conversion Rate of .67, which contrasts with the typical FCR for fish and shrimp which is MUCH higher:
FCRs vary with several factors, including species, feed type and quality, production system, feeding technique, and water quality conditions. Warmwater fish and shrimp farms typically achieve FCR values of 1.5-2.5, and for general purposes, FCR often is assumed to be 2.0. Feed Efficiency Indicators for Responsible Aquaculture. Claude E. Boyd, Ph. D.