I'd love to see some better tank mount brackets that don't cost $150. For what they are, the price is insulting. I'd also like to see some adjustment in overall width be possible so if you are using smaller lights in the center, you can reduce the gap between the two T5 units.
The new wall mount bracket pair has a target of $99.00 - $119.00. We are not ready to make a tank mount as the possibilities of damage to the aquarium is too high. The other dilemma has been the varying lengths of aquariums, it requires that the legs can slide the length of the fixture. To do that plus keep the LED 6 " to 8" above the aquarium...….. Just too much movement for us.
The wall mount will allow you to extend the light 3.75" off the wall and adjust the height of the fixture after mounted. It will also tilt up if needed.