Male Clown Swimming weird

my male black and white clown has not been himself, he has been swimming in a corner int he back of the tank right above the subtrate all morning, fish will go by he will swim with them a little bit in the corner then go back to this, sorry for the bad pics, best i could get. And nobody has been picking on him :/

any idea

 

and sometimes he will sink to the sand and spaz out then do this all over again,

 

Clownfish are wierd, it might be normal or it could be trying to mate with the other clown..

 

i hope its normal, this is just not ike him to do this :/ the two have been "dancing" under the moonlight at night not sure if thats a potential sign of spawning, just kind of worried cause he's usually swimming around the tank

 

and the female is now twitching on her side in the sand in the area underneath the male, could this be a sign of eggs?

edit: he just left the corner but is still swimming the same

 

Might be, hope you're ready if they are, could you find some rotifers if they did breed.

 

what exactly is rotifers?

and the male is back in the corner he didnt leave it for no more than maybe 10 seconds then went straight back

 

I dunno. When I had Dora and Pablo II they would do this - but not go all the way to the sand. But they would swim straight up like this. I don't know if it was because Dora was sick, or if it was mating behavior.

 

planktonic food, the food they feed for most fry, before the fry can even eat baby brine shrimp. By "they" I mean fish breeders.

 

and that's why im worried he has left the corner again but he like spazzes when he swims, would swim verticle and kinda sink back to the bottom, i hope he wont end up like dora maybe it is a sign of breeding, but whatever he is doing is not normal, almost looks like he's struggling to swim :-/