[Today I re-did my aquascaping and noticed what I think was a flatworm but before I could grab it, it went into a hole. What kind of problems are associated with flatworms and how do you get rid of them?]
[Some are benign, but some are predators. If you saw one that you 'wanted to grab' I'm guessing it is large. I learned that some look like the mantle of a clam so they can attack it unseen.
Here's some information on the Red Planaria we usually worry about.
