red worms are earthworms! they just prefer to live in decaying organic matter high in bacterial content.

Yes, but are there not different varieties of earthworm? I need to the kind for which I just paid $32 for a pound. Eisenia fetida.

On an additional note, I know we have this type of redworm in our yard because my husband used to have worm bins and released a lot into the yard.

Then collect only the ones that have yellow tail end segments and a yellowish band around each end of each egment. They will also secreat a yellow liquid when squeezed gently that will be somewhat oderiforus. This species is commonly called a manure worm /E. fetida. It is so closely related to E andre it takes a analysis of digestive fluids to tell the difference. Basically no difference.