Hi I have a baby leo in a 20 gal long tank and I was wondering if it was a good idea to get like a small 50w blue "moonlight" bulb just for viewing. I know leos dont need any lighting and the temperatures in my tank are pretty good. I have a small ceramic light with a regular bulb on but i never use it anymore (since i found out they dont need light) so i was wondering if i could get him a blue one just for night time so i can see him for a bit. If I leave it on all night it would make the tank hotter right?