I cover half of his tank with a black pashmina, No light can penetrate it and I also cover just the side where the cricket holders are so that he won't bump his little nose against the glass. I keep small and medium crickets. He doesn't really bother with the small crickets much though unless that is all there is. Little piggy frog. I don't know how people feel about this, But I also have lights for him. A blue 'Daylight Amphibian' bulb and a red 'Nocturnal amphibian' bulb, They have dimmer switches. I change them at the same times 'more or less' every day and I slowly dim the daylight bulb throughout the day as natural daylight would. I work from home so I am able to dedicate time to Tickles and I have no kids (yay) So he is my sole dependent. Does anyone know if there is a dual fixture with a timer and automatic dimmer that would do this for me when I am not home? I like my bedroom dark so the lights are imperative to his well being and warmth. At least I think so. I could be wrong. I hope it is right???