Should I leave a light on? I have a lunar 1 watt LED I can put over the nest site to keep it illuminated. I know with Betta's you're supposed to keep a dim light on until they become free swimming. Does the same apply? How much light is enough? I want them to be able to rest but if the corries or oto's sneak up in the middle of the night I don't want them to loose the entire clutch again.