Hornwort clogging up tank?

I have a ton of hornwort growing in one of my tanks (the silver dollars, 1
angel fish, a couple white cloud mountain minnows, and a ton of fancy
guppies) and have noticed female guppies and a couple of male fancy guppies
possibly getting stuck in the mass of hornwort. I haven't actually witnessed
any thing except for the occasional fancy guppy death which I previously
attributed to other causes. Is it possible that any of my fish are getting
caught in the hornwort and that that causes them to die (starvation?)?
Should I just rip out a chunk of the hornwort once in a while and throw it
out in the trash afterward (the hornwort dies off in my other tanks and I
don't know why and if I keep adding the spare hornwort I am afraid of water
pollution from doing that as the plants would die off in the other tanks and
cause excessive dissolved organic compounds and who knows what else)?
Thanks, give me an idea on how to deal with this! Good luck and later!