That’s a biggun, my go to is super glue the dickens out of their hole or epoxy. But there are a few remedies as well here on the forums and specifically f-aptasia. Be warned if you do try and go after them and any bit survives, then you only make it worse. That’s why you block the hole and starve em out.
Highly effective and reef safe. Aiptasia-X eradicates Aiptasia and its larvae from your tank. The special formula of natural components form a thick, adhesive material which, once ingested, seals shut the mouth of nuisance anemones. Shortly after ingestion, the material causes the Aiptasia to...