The objectives of this study were to: 1) evaluate the use of KI WSB for enrichment of Artemia with iodine; 2) determine if zebrafish larvae were able to obtain iodine from KI WSB-enriched Artemia; 3) investigate the effects of KI WSB-enriched Artemia on the growth, survival and thyroid status of larval zebrafish; 4) determine if Artemia were a potential source of exogenous thyroid hormones (TH) for larval fish; and 5) determine if KI WSB had an effect on bacterial concentrations associated with Artemia. A 24-day feeding trial was conducted to compare the effects of iodine-enriched Artemia with unenriched Artemia on the survival and growth of larval zebrafish.