Thank you for all the responses, I keep African Cichlids and maintain a temp of 78- 80 deg. the tanks do have glass lids and no insulation as they are in my living space until the fish room is complete. I run LED lights and keep usage to a minimum as they have the night light option which I really like. For filtration I run canisters and power filters and I am over filtered e.g (120 gallon has 1 xp4 and 1 xp3) my tanks are not over stocked so I could probably cut back on filtration to save some but really don't want to. With for kids it seems I am always walking around turning off lights and T.V.'s.