Why discus fry stop eating?

[Jazzman]

Another thing to consider is tankmates. Are there any other fish in there? Sometimes even peaceful species can stress fry if they're too active.

[angelus]

Yep, tankmates can be a big deal. My fry stopped eating when I added some tetras. Had to move the tetras out, and boom, problem solved.

[silence]

Mine did this too. Turned out the heater was flickering, causing temp swings. Replaced it, and they started eating again.