I have tried coffee filters in the past with the moisture loving plants but they broke down rapidly here. These days, I try to locate something that provides some screening and lasts for a while but still allows the pots to drain more naturally. Unfortunately, I think it makes it easy for the worms to migrate from one pot to the next.
I will definitely try your suggestion with the dish soap. Do you know if it is necessary for it to be lemon scented? I want to make sure that I pick up the correct stuff. Anything that will force the worms to come up to top of the pot and not kill my plants in the process would be great. I can pick worms quite quickly now as I have had a lot of practice
I will be sure to start with just a few plants and to flush them well afterwards. I really appreciate the advice. Thank you so much for your suggestion!