Calling all Lanthanum chloride users: got any AEFW?

[Charlie’s Frags]

I think (hope, pray) they are still gone. It is about time that I should pull a handful of their favorite colonies and dip to double check. Been distracted with plumbing the new frag tank for a full week now.

If not you then somebody else with these little terrors should try.

 

[ScottB]

I thought I would come back to this thread with an "update".

So Spring 2022, I seemed to have AEFW under control / undetectable. But I had gotten to that point once/twice before, got lazy, and kinda ended up where I began. The AEFW population would rebound once I stopped dipping every weekend.

But coming up on a year later, I have not seen a worm since. Since then, I have been running higher nutrients -- even dosing trisodium phosphate -- and dosing LCl once a month or so.

I think I am going to reverse my previous skepticism about LCl dosing's effectiveness. While I am not sure it literally kills adult AEFW, I believe it is messing with either the young ones or some stage of the reproductive cycle. I never did the dip test on the worms to confirm lethality. By the time that thought occurred they were already undetectable.

Warning: do NOT dose lanthanam chloride (LCl) without sufficient levels of PO4 available. It will strip it out quickly and your corals will suffer/die. You also risk dinos. Dose up PO4 if you have to.