Its my first time with guppies. I know they are known to lay the babies every 20-30 days but was wondering since she is super bloated.. under what conditions will she lay them? The male and female swim mid-top areas - and they are enjoying themselves showing bright colors. The female is more plain colored though. The cories are the wild guys in the tank just swiming up and down the current from the filter. I currently do not have a light for this tank but it does have a cover; and only gets light from the natural sunlight from the window.