I am in the process of planning a 35 gallon reef tank. It will be the footprint of a 20 gallon but the height of a 55, so it will match the 55 it will be sitting next to. A guy I work with that has a lot more experience with saltwater than i do thinks i will have problems with getting enough oxygen into the water because of the increase in depth but not surface area. He also thinks I will have problems lighting corals at the bottom. Are his concerns valid? I am planning on using a 150 watt MH
pendant and a 28 watt t5 fixture. Any thoughts would be appreciated.