if you have a nano, take it apart and clean them out of the whole system all at once. we have 20+ page threads on the action
not a water change, literally taking the reef apart, cleaning it, setting it up back as new, though it is technically ____ days old already. excluding every cell of the invader but keeping all the other items we want. not hard
if you have a large tank, then the inevitable delay allows massing time/standard battle continues
hoping this is nano, an opt out option awaits. for a large tank, they will opt directly in to a full on invasion. all based on gallons, not species. anything that can be drained 100% into a brute can I consider a nano, so I guess fifty gallons and below are better off being cleaned vs taking risks with time/allowed mass