Well, for me, as long as it doesn't affect sps, lps, or inverts then it can remain all it wants. If it stays in the system for long period of time and keeps the Bryopsis down with no harm to the tank then I say "who cares" right. Let it linger. [emoji38]We'll have to see how long Fluconazole actually stays active in our tanks or if wcs and carbon removes it completely. Who knows,it may still remain in the tank for 6 months or longer and just be hindering the Bryopsis from returning until the level of Fluconazole gets low enough. I hope this isn't the case.