Vulintus pellet dispensers use standard 45 mg (rat) or 20 mg (mouse) food pellets, available from these companies:
We recommend their "Dustless Precision Pellets". The grain-based or purified varieties are best for animals receiving the majority of their food from behavioral tasks.
Purina TestDiet's 5TUL and 5TUL tablets are both available in 45 mg and 20 mg pellets compatible with our feeders. Both formulations are full nutrition for animals receiving the majority of their food from behavioral tasks. TestDiet is sold through regional distributors (find yours here).