Hello all, quick question for ya. I'm doing an emersed set up using MGOPM, been having decent growth, crypts are doing excellent much to my surprise, but today I went to move one of the bins, and underneath in the MGOPM I found a 3 inch earth worm. Not really sure how he got in there, probably the soil I used outside before I got the potting mix. Anyhow I know worm castings are helpful to plants and all that, so question is should I leave it be, or pull it out?