Clown fish

I have a pair of clowns in my 55g tank for about a month now. Today i noticed one hanging out in the bottom corner of my tank. (where they usually sleep..) But is acting very strange.. he keeps laying on his side and barley moving.. The other clown (female i think she is bigger) will stand guard over him. He will come out and swim a lil but go back to this same spot with same strange behavior.. The foxface will come by and flare all of his fins out when he gets close also.. not sure whats going on or if i should be concerned..

ph 8.0
sal. 1.025
no2 0
no3 0
kh 10
calcium 350
phos 0

 

doesnt sound too good, although its hard to be sure because clowns can act pretty strange sometimes. the foxface could be picking on him.

 

Im hope its just a strange behavior and everything is ok.. rest of the fish seem to be doing ok.. And i never see the foxface give anyone else trouble in the tank.. but who knows

 

check everything, it could be a parasite, it could be bullying.