So what PEST corals would you recommend to steer clear from ? I have had experience w/ GSP's , Blue Anthellia that grew into 4-5" monsters !!! Kenya Tree. I now have some super tiny blue (some type of clavia ) a hitchhiker, that are starting to cover one rock. It has sprang up all around some Daisy Polyps. Anxious to see who wins ? But I have a good idea which it will be. Sometimes, I would rather have the pest corals growing, than GHA !