mudboots

Mollies and any of those Gambusia (mosquito fish, minnows, pond guppies, whatever ya'll call them locally) species eat it, but like most are saying, the best way is simply to remove it.

I had a small amount and couldn't get it to grow due to the "minnows", but when I added a good size glob if it, it exploded in growth and I had a hard time removing it. Once it was down to just a few little patches the fish cleaned up the rest and I haven't seen any since.