[pbukow]

Another note, maybe you could consider cutting back the flow for awhile until the clowns get used to the very high flow you got going in your tank. maybe remove the Koralia and see if any more clowns get lost in your filtration. Just a suggestion, I don't know if clowns need time to "grow" into the flow of a tank, especially since they are so small and are such weak swimmers by their own nature.