Hi Guys. Planning to change to a tank of the above mentioned dimensions. Currently i have a illumax T5HO 2X24watt fixture yet to be used but based on calculation, it seems insufficient should i want to plant higher requirement plants. Thus currently contemplating should i change to 1 70/150watt MH instead. Reason for this choice being i don't want to have such a big piece of fixture above my tank. Anyone has any experience/reviews on DE lighting Metal Halide fixture 150W with E ballast or those from www.viclite.com care to share?