Scrubber_steve
2500 Club Member
Hope this hasn't been proposed before.
So I got a reasonable size rock covered in zoas. After a couple of weeks I noticed some very small nudies, with frilly tenticles the same colour as the zoa's polyps, crawling on the glass.
Then a month later the zoa rock was infested & the polyps retracted.
I read an article proposing the use of Salifert's Flat Worm remover to kill the nudies. That was a failure.
Anyhow, a removal-dip was out of the question because the zoas had spread & attached to other rocks, & so was no longer removable from the tank.
So at lights out, when the zoa polyps were more fully retracted, I used a torch & 30ml syringe (no needle), hunted down the nudies & sucked them out, 6 to a dozen at a time. Over a period of a month, & they now have seemingly totally gone, & the polyps have fully extended once again.
No chemicals.
So I got a reasonable size rock covered in zoas. After a couple of weeks I noticed some very small nudies, with frilly tenticles the same colour as the zoa's polyps, crawling on the glass.
Then a month later the zoa rock was infested & the polyps retracted.
I read an article proposing the use of Salifert's Flat Worm remover to kill the nudies. That was a failure.
Anyhow, a removal-dip was out of the question because the zoas had spread & attached to other rocks, & so was no longer removable from the tank.
So at lights out, when the zoa polyps were more fully retracted, I used a torch & 30ml syringe (no needle), hunted down the nudies & sucked them out, 6 to a dozen at a time. Over a period of a month, & they now have seemingly totally gone, & the polyps have fully extended once again.
No chemicals.
