2 Ray 2's vs Ray2 & Planted +
I already have one Ray 2 on my 25cube. I am wondering for more spread if I should get a second Ray 2 or use a planted + in the back where the substrate will be higher. The only thing is the planted + is 20inches on a 18inch tank and I do not want the light shinning down the side of the tank. Do you think I would be better off with 2 Ray 2's?