Grimace (AEFW) reef pest identification image

FAQ

Pest Identification Questions

About Grimace (AEFW)

  • What is Grimace (AEFW)?
    Recently recognized in the hobby, much more destructive than AEFW,
  • How does Grimace (AEFW) behave or spread?
    rapidly consumes tissue from the base upwards, lays egg cases scattered at random on substrate near the base, photosensitive, possibly nocturnal
  • How can Grimace (AEFW) be controlled or removed?
    repeated dipping, inspection and removal of egg cases, rebasing recommended