Weirdest Thing

[GSXRDan]

I have the weirdest thing going on in my tank. About 2 weeks ago I got 2 o. Clowns and a BTA. The clowns were always in my anemone, day and night. I added a Yellow tang last Sunday and since then the clowns and tang have schooled together. Wherever one goes the other 2 are following. Has anyone ever seen this happen?

 

[electrikat]

My yellow tang, coral beauty angel, 2 o.clowns, and the chromis all school like this. The others do not but those all seem to be a group.