Does anyone know the "specific" pods that a mandarin preys on?

they are not that specific of a feeder they will eat isopods, copepods,
micro worms, types of rotifers(non plantonic types) and a variety of other
itty bitty critters, amphipods are generally speaking not part of there
diet, though i guess if one jumped up and down and yelled "eat me" the
mandarin probiby would