Hi all, I'm researching lighting solutions for a new planted tank (low tech). I really like the Fluval 3.0 but I have a normal sized 29 gallon tank that is 30" long. The Fluval 3.0 does have a fixture that is meant for 24"-36" tanks, but the fixture itself is only 24" long. You get the extra length by extending the mounting arms. Would this still work well to light the whole tank? Will the 12" (6" on each side) without a direct light overhead lead to dark spots on the sides? Would just like to grow simple, easy plants to start with. Thanks for the assistance and opinions.