paired clownfish stopped eating

[chakacris]

So I've had my ocellaris pair since about 4 years ago, never had any problems with them, about six months ago i started adding some corals, last one was a green star polyp that's doing great about 1 month ago or more, the last 4 days my male first stopped eating, 3 days ago the female followed, now they just won't eat, when i turn off the pumps they go to the feeding spot but won't eat anything at all, they are the only fish in my tank, could this be behavior? Both sick with something? They both look a little skinny but everything else is good, color is a vibrant as always, just a little less active.

I can't currently test for everything in the tank but my salinity is on 1.025, no ammonia, no nitrite, nitrates around 20, temp steady at 78-79, kh at 13, ca 420-40. PH 8.5

 

[Uncle99]

Fish can stop eating if they catch Ick.
Any tiny white spots?
Any usually breathing?
Eyes glassy?
Do you run carbon?

 

[scooter31707]

Any other symptoms besides not eating, flashing, twitching, rapid breathing, etc.?

 

[chakacris]

nothing, no white spots, no rapid breathing, no shaking, nothing at lall just a little les active, but "skin" and eyes look normal vibrant as ever.

 

[shaginwagon13]

nothing, no white spots, no rapid breathing, no shaking, nothing at lall just a little les active, but "skin" and eyes look normal vibrant as ever.

How many feeding sessions / days have they gone without you seeing them eat?