Who Gives A Fish Forums

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.

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.

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