Fish that aren't eating!

[winkleGUY]

I have a ghost catfish and five rummynose tetras that aren't eating! I've tried floating, sinking, and bottom pellets, none work! I've tried free dried bloodworms, frozen bloodworms, flakes, and sinking pellets but none of them are working! please help before they die!

 

[Meredith]

how long has this been going on? any other unusual behavior? Water params?

 

[winkleGUY]

the water is perfect, nitrates, nitrites, ammonium, hardness, pH is all fine, perfect levels, i think they are just stressed, but its only been going on 5 days=