Here is what I've been doing. I can't say it is the right way to do it (no pH adjustment), but it has been working for me. I bought some from a local reefer knowing they had nudi's and spiders, so this is my first experience with the nasties (I've somehow stayed away from zoa critters). Can't pass up a challenge or experience... This was in response to a questin about just doing a FW dip with no Lugol's (never done it that way...).
"I'm not sure without Lugol's (I know people do just FW dips, but I don't know the specifics of duration, etc.). With Lugol's, here is what I am doing for those I got (these things are still covered in them). I took some RO water in a tupperware container and floated it in the tank that the zoas are in. After temperature acclimation, I pulled two smaller tupperware containers worth of tank water from the tank and put all the zoas in one of them. More on the second one in a minute. I transferred some of the RO water into a smaller container for the dip, so I could treat in batches (I got about 20 different pieces). I dropped 7 drops of Lugol's in about 16oz of RO water (they recommend 2-3 drops per gallon...) and dropped the zoas in. After 5 minutes, I started picking through them. I used a clamp on light to help spotlight the zoas. I held them under the lamp and looked between and at the base of every poylp with a toothpick to scrape out any nudi's. I started with the smaller pieces (at the 5 minute mark for each batch) because the larger pieces take longer to look over. It took about 20 minutes to pick over each batch, so some of the zoas were in the water for 18 or so minutes (they recommend 5 minutes). After picking through them, I dropped them in the second small tupperware container with tank water. When I had picked through all from one batch, I would drop more in the dip and go and drop the ones I had just dipped into the QT tank. By the time I had done that, it was time to pick through another batch. I changed the dip solution (still had some RO after the transfer) every two dips, as well as the water in the 'clean' container and the holding container (uncleaned zoas). Float whatever you can for as long as you can to keep temperature differences down. It took a little over an hour to thoroughly scour every zoa I got from him. Then I found another on Tuesday cruising around one of the frags. I dipped on Saturday... Nasty little bastards. I'm going to continue three more times on one week intervals. I may shorten it to 5 days, though. I don't adjust the pH, but if you can, it wouldn't hurt."
Like I said, this not as recommended in the dip thread, but it is how the procedure best fits my habits and techniques. The clamp on light helps alot, as well as a magnifying glass (thought I didn't end up using it a whole lot). I picked out the cruising nudi and haven't seen any or eggs since. I assume it was in the rocks in the QT tank when I did the dip.
