Hi, I'm starting on a new 3feet tank, the width of the tank will be 1.5feet wide.

My concern now is about the lighting. For example if i have a single light casing using 4x36watts PL and i place it in the middle of the tank, will the plants at the background grow forward?

I intend to have 2 light casing of 2x36watts PL so that the light distribution will be more even, however the costs will be much higher.

Hope forummers can provide me with some suggestions or personal experiences