#flatwormid

Is this a type of flatworm?? My tank is infested with these !!! Should I nuke the tank??? And start over ?? What’s the best method I should do. It’s infested to the point dipping will be no help.

This flatworm looking creature came off my lettuce nudibranch. I purchases this nudibranch about a month ago not really any problems with it until now. When I was checking the tank a lunch it looked as if it had laid eggs. About 3 hours later this thing has been moving around the tank. The...