Has anyone found the "dead" dosage for the worms yet?
I'm about to pull the trigger on some PROHIBIT, and will do the testing if needed. But I'd prefer to have someone that has it already to do it if they can.
I am currently testing the Bayer Insecticide as a dip, which seems to work well at 10ml per 1/2 cup for 5 minutes.
IF the levamisole doesn't work out, I'll be dipping with the Bayer. That has two problems associated with it. I have to tear down my display, which has several three-four year old colonies in it, and the costs associated with dipping with the Bayer are pretty pricey. It would run me about $20 per dip for about 10-15 dips.
Anyways, back to my thoughts on the PROHIBIT:
I think if the tank is handling things well, I'd shoot for a ten-twelve week dip process. That would equal, at a minimum, ten dips six days apart. It sounds like the first dip should be at the 5/300 ratio, and then examination to see how everything did.
After that, a ramp up of .5g/300Gal would probably be a good idea up to the point where you feel comfortable with coral/fish health.
I, personally, would leave the skimmer running, but pull the airline out so it is just running water. Same with calcium reactors. Leave them running. We are pretty certain that these things can swim, so I'd hate to see some of them crawling through your system and get into a skimmer or reactor only to exit it at a later date and reinfect coral. All of this is conjecture at best, but these are the things I think about late at night when I cry myself to sleep not wanting to tear my tank apart.
Just my two cents. Pretty sure I'm going to go order some PROHIBIT right now. If nothing else, I'll do some testing on flatworms with it. I did notice the exact same "not really dead" effect yesterday testing a couple flatworms with the Bayer insecticide. After replenishing the test water with new tank water, the flatworm revived itself. It was definitely in pain, but was for sure still alive.