Dear Erick,

please find attached a number of reviews which represent all you need to know about zebrafish (as teleost paradigm) nutrition. The latest (Verri et al., 2016) is particularly useful to understand the fundamental impact and interplay of short peptides (oligopeptides) on nutritional pathways.

I hope you would please to receive this kind of input.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4064678/

http://download.bioon.com.cn/view/upload/201309/12212619_2822.pdf

http://www.sciencedirect.com/science/article/pii/0300962986902720?np=y

https://www.ncbi.nlm.nih.gov/pubmed/27642792

http://www.zhaonline.org/zebrafish-basics.html

https://www.ncbi.nlm.nih.gov/pubmed/27803975

Moreover, never forget other "more practical" lab issues for zebrafish nutritional requirements, e.g. administration of "fresh" sources in addition to pre-made diets.