my occ clown has been doing great until tonight. he had been eating a ton soince i got rods food. I have had him for 3 weeks now

tonight i thought he was hosting my frag cup, he was swimming right by it. i went to feed them, and he didnt move from the cup. normally he attacks the food. this time he didnt care. the other clown tore up the food. since the other one didnt bother eating, my other clown at all of it.

the clown that didnt eat looks like he has a full belly, but he didnt eat anything today. he is just swimming over the cup. normally i have seen clown hosting things they kind of swim back and forth, and up and down. he is just flapping his side fins and kind of bobbing side to side, kind of like he is drunk.

he has no spots/marks on his body anywhere, his fins arent torn up, they are in perfect shape and his coloring is fine

when i open the lid for feeding time, they both typically swim up to the top. the clown that ate did that, but this one didnt.

i checked my numbers with my test kits
i show 0 ammonia, 0 nitrites, ph is 8.2, nitrate i am not positive because i always get different results. i just did a water change on saturday so i am sure they are fine. my salinity is 1.023 (it has always been that)

had he eaten, i wouldnt have thought anything except maybe he was hosting the cup...only he didnt eat, which is not like him. i feed 1 time per day.

i hope this is enough info.

Day 2
It survived the night, but still he would not eat. i put in the food and he wanted no part of it. he is back in teh same spot. still no spots or marks, no fighting. it did do the shakes when giving up dominance.

his belly doesnt look full anymore. he swam to the top to get food, when i put it in, he didnt eat it, he didnt care about it, just went back to that spot.

if anyone has any ideas, i really want my clowns to live