This listing is for large 2 oz. starter cultures of all four of the nematode worms widely cultured and used as a first/second food for fry of freshwater fish. They are healthy, sizable cultures used to start larger cultures that quickly provide fry food. The worms are all extremely small to the unaided human eye. Their size differences are summarized in the chart in the image section. In my experience feeding fry, I use them in the order: vinegar eel – walter worm – banana worm – micro wo...
