Full Grindal worm cultures in a 650ml ventilated food-grade container. Ideal for setting up several starter colonies. I have been producing home grown grindal worm cultures for over 10 years. I keep the worms at around 22c all year. The substrate can be coir, potting soil, peat, organic top soil or any mixture of these. The worms are fed on a diet of high protein cat pellets, which are soaked for a few minutes prior to placing then in the containers. Grindal worms are prolific breeder...