I have one tank where the fish have what I believe to be nematodes. I'm currently trying a course of treatment and will see how it goes. My problem is that this is also one of my most prolific plant tanks. I'd like to take some of the plants and move them to my 50g that I am in the process of setting up. So, the question is, what is the best way to make sure I am just transferring the plants and not the parasites?