Spawning lights on or off?

[Mindelo]

hello
someone just told that when the fishes spawn,
i'm supposed to leave the lights on, otherwise they will feel stressed (cause they can't see the eggs) and eat the eggs is this true?

 

[SparkyJones]

depends on the species.

It can be true. with angelfish, if it's an abrupt on/off, it can spook them like it's a threat and then they will just eat the eggs. I dont' think it matters with the egg scatterers, but with the paternal types of spawners, that tend the eggs the entire time, it certainly can make them eat the eggs.