clown behavior

[bentrue]

i have just finished the switch from cc to LS today. it has been about 3 hours since the change and my perc clown seems to be digging or pushing the sand around in one spot. is this natural behavior with clowns and sand? he didn't do it when it was cc.
also the clown is tank raised and the first four days he was in the tank he swam very fast all over the place, now he is doing the above mentioned sand things, and swimming more slowly in one area of the tank. he still eats well, and look healthy.
is this behavior natural?

 

[tomato clown]

My clown isn't happy till he hits the glass bottom. Then when I replace the sub. he starts all over again. very typical behavior.
Dan

 

[fishfreek]

Very normal, mine do it too.

 

[jimmyjam]

My Maroon does it all the time, and as you said until he sees glass his not happy.