Composting/Fishing Red Worms I have a couple thousand composting red worms that are free to whomever wants them. I used these little guys to compost all my fruits and vegetable scraps for the past couple years with great success. I have recently moved and I don't need them anymore. I have also recently harvested all of the compost/castings so the worms could be transported with a couple gallon size zip-lock bags. My guess is there is more than one thousand and less than ten thousand individual worms. Since these are red worms (ranging in size from a 1/2 inch or so to 3.5 inches) they can also be used for fishing. Or eating. Whatever you want.