Excelsior Fruit Fly Medium for Cultures

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Excelsior is the natural wood fiber substrate that gives your fruit flies a place to pupate and thrive. This 2oz pack is enough for 5 cultures — just add a handful to one of our 32 oz Culture Cups alongside Repashy Superfly, seed with flies, and you're done. 2oz pack — enough excelsior for 5 fruit fly cultures Natural wood fiber — gives flies the perfect surface to pupate Works with Repashy Superfly and our 32oz Culture Cups ⚠️ Cannot be shipped with live feeders due to size Show more