Larval zebrafish are adapted to feed on zooplankton. It is possible to capitalize on this natural feature in the laboratory by growing first feeding fish together in the same system with live saltwater rotifers. This "polyculture" strategy promotes high growth and survival with minimal labor and disturbance to the larvae.
Lawrence, C., Best, J., Cockington, J., Henry, E. C., Hurley, S., James, A., Lapointe, C., Maloney, K., Sanders, E. The Complete and Updated "Rotifer Polyculture Method" for Rearing First Feeding Zebrafish. J. Vis. Exp. (107), e53629, doi:10.3791/53629 (2016).