what is this fish doing??????

All of a sudden my blue damsel is tearing up the sand. It swims to the bottom, points its head up and then wiggles its tail and blows sand all over. I am getting lillte sand mountains everywhere. Does anybody know why this is happening? It was kinda funny at first but not any more.

Thanks for any input.

 

Normal for blue damsels. They try to flush up extra food from the sand.

 

Thanks.

 

both my damsel and clarkii clown do that,its a real pain fixing the sand all the time.

 

my clown does this aswell. not much you can do about it.