Kamfa not eating

[Kamfa2020]

Hi everyone
I bought a kamfa recently. I found that the seller was feeding him okiko platinum. But when I went to the market to get the same it was unavailable hence I got the AMG booster feed for my flowerhorn. When I fed him AMG booster he isn't eating them. Suggest me some ways so that I can get him eat AMG booster over okiko
Pic of AMG booster feed is attached

 

[Ruturaj]

There can be one of the two things
Usually fish take few days to accept new food (highly likely), in this case you will need to starve him for few days,
Or he might be sick, then you will have to treat him.

Was he shipped to you? How's the poop color?

On side note, I would not feed either food. Better food would be from northfin, NLS, if on budget then hikari.

 

[Kamfa2020]

After 3 days of starvation the fish still is not eating.
He seems to be in stress at night I don't understand why

 

[Magnus_Bane]

After 3 days of starvation the fish still is not eating.
He seems to be in stress at night I don't understand why

Did your check your water parameters? If not I would highly recommend testing it and posting the results. Even if it's just one chemical that's showing up on the tests that would be plenty enough to cause your FH to feel uncomfortable enough to refuse to eat. Also would you mind taking a pic of the tank and posting it? It could also be that it is stressed out from how the tank is designed/setup.