I Googled "Eisenia Fetida" and found, in more than one site, that this is the latin name for red wigglers. Red wigglers are vermicomposting worms.

You said: "someone told me...." I don't know much of anything about reddit but if this was just one person, you may want to do a somewhat more broad approach to your research. Just sayin'.

These are exactly the right type of worms to use. Whoever said different didn't know what they were talking about.

amen

You may need to go correct the information stream on whatever this reddit thing is. Or at the very least post that information there is suspect.