Originally Posted by earlybird
I believe there are some nudis that eat flatworms and six line wrasse will also.
Yep..
Bergiha (sp) nudibranches. Hard to find, but they are available in the trade specificially for this purpose. They are obligatory flatform eaters, so they will die once they wipe out the population. Many aquarists pass them along from hobbyiest to hobbyiest. Our reef club did this a while back.
There is also a product out there by Salifert called "Flatform Exit"
This product does work and is reef safe, but it needs to be used with extreme caution. Flatforms often release toxins when they die, which is usually no big deal unless you kill a whole tank full of them at once, so you need to follow the directions very closely. Frankly though, I wouldn't go using this just because you saw one flatform.. I'd grab that flatform if it's offending you, and wait to see if any more turn up. There are probably more, but you don't know that yet.
