Hi all,
About a month ago I added 3 American Flag Fish to my algae crew. I understood that they sometimes nibbled on various plants which was fine as long as they did a good job with the algae. Well they have done a good job with algae and my stargrass as well. My poor stargrass looks like it got a bad crew cut. I've watched them tear entire leaves off

My concern is when the stargrass is gone they'll move on to another, then another. Has anyone had any similar experiences? Does anyone know if they have preferences for certain plant species? If this keeps up, they'll get a one-way ticket to the LFS..
Any suggestions would be appreciated.
Don