and if (fat chance) this is the only one in the tank, anyone the above will dispatch this little bugger. I have also taken to injecting them with a tuberculin syringe and needle with Kalk slurry when they are in the over flow - if you get e good contained shot, its lights out...
However, it likely is not the only one and all I can say is the only place I see them in my system is in the overflows or in the sump that does not have a peppermint shrimp in it. Other displays which have peppermint shrimp have no aptasia visible, as goes the sump with shrimp
CB Aptasia eating filefish work too -
there are accounts of both of these biological control methods resulting in some soft coral predation as well - I have not seen any but clearly others do
Bon chance y'all