So, my tank's been up and running for a couple of months now and there are two species that are starting to require pruning: Anacharis and Cabomba. They're growing to the water line and starting to bend over because they're so tall. With the anacharis, I just snip off the chute that has grown to the top and replant it. What about the cabomba? They don't seem to chute off, rather it's the original stem that's just grown to the top. Can I snip a couple inches off of the top or bottom?