I've kept several of these fish. The first one was placed into a tank with a long tentacle anemone. They hit it off beautifully from the start. I purchased another saddleback for a separate tank which had the previously mentioned anemone in it (yes, its clownfish perished some time before). This one (less than an inch) was small and very skittish. It was actually freaked out by the anemone and was very stressed when I put them together. I upped the tank size and the clownfish opted to choose a portion of the live rock for its territory. In summation, this species is not an obligate host for anemones, meaning, in the wild, it chooses whether or not it wants to host with an anemone. My first one chose such a course, while the second opted for a portion of live rock on my reef. It comes down to luck with these fish. But if you are to try, it definitely helps to try the species of anemone mentioned in the previous posts (Heteractis crispa or Sticholdactyla haddoni), as they are the only natural hosts for this fish.
