WOW indeed Genie! And you have to have at least a mini filter and heater? in each side? Ive been wondering about the exta electric cost each month running theses tanks? I have my eclipse full spectrum natural light tube on my hood. Dont even know if thats a good one or not, or energy efficient. If it wasnt too bad Id love to have some 5gs in my art room.Lucky you.. ;D they are sooo beautiful to watch swim around.Genie said:Four tanks now-- divided!