Think of it like cooking ingrediants. If you are making a meal for 2 and the recipe is for 4 you would divide the qty's of each and every ingrediant by half. So for dips with Revive and Lugols or with interceptor you just need to be sure to use the correct amount of treatment chemical in relation to the volumn of water you are working with. For example I use Lugols for my dips but I do not like to use 1 gal for a couple of tiny frags so I will tend to use say 5 cups worth of water and then just reduce the Lugols accordingly.Thanks. That was good, especially with the pictures. However, I wonder if there is a way to do it like you would a Revive dip...or at least the way I do a Revive dip, which is 1-litre of water and less than 10-minutes in the solution. With Melevs technique you need 2.5-gallons of water and over 2-hours. But, Melev was dipping a colony, I am talking about dipping a typical single branch frag that was just purchased. Can the coral survive a much stronger dose with much less time and of course still kill all the red bugs?
IMHO if you know that an infected coral made it into your tank you should treat the whole tank.