Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Theres a picture in this link that shows an easy way to see how much spread a light has Buy pointing it to the floor or carpet.
I prefer to hit as much of the top of tank as I can rather than stay close and pound the bottom. This reduces shading.
I would at least try to hit and cover the entire bottom of the tank.

