My female Molly gave birth a week or so ago, and in the last 3-4 days has been acting weird. The male and her spend most of the day by the heater, even if I chase them away they come back almost immediatly. The female rubs her 'face' up and down the hot part of it and now it looks like top of her head is pink from the heat. I cant take the heater out obviously but I can't keep her away. Don't want her to die, but I'm not sure why she's doing this. Any advice for me before i have a baked fishstick?