Grendal worm starter culture.

Coconut fiber base.

Harvest using a piece of plastic needle point canvas.  Place a piece of the canvas over the worms.  Use a few pieces of dry cat or dog food and place on top of the canvas.  Add a few drop of water to moisten the dry food. Worms will come through the canvas to eat the food. 

Take the worm covered canvas and rinse in tank water. Feed to your fish.

Grendal worms are larger then microworms but smaller then whiteworms. Great for raising up fry.