I wish I knew why my clowns used the chondylactis, and some others will not. Since I don't know why all I can do is speculate, My first ideah is that lets say at any given reef where clown fish live there are two kinds of anemone on that reef, some clowns live in "anemone type 1" other clowns even of the same species live in "anemone type 2" for what ever reason. Now lets say that "anemone type1" is closer related to Chondylactis than "anemone type 2" is. This may suggest that clownfish formerly living on the reef in "anemone type 1" would be more likely to use a Chondylactis as opposed to clownfish from the same reef which were living in "anemone type 2"
