So I found an all glass Marineland 300gallon dd aquarium on the marineland site. I love the dimensions. 72long, 36deep, 27high. Perfect. It has a cornerflow in both back corners. At a quick search, I could not find a price for them--any recommendations for a site that sales them? Also I'm not entirely sure about the drilled holes in this tank. As is, I would still have to use in-tank powerheads. I was thinking about having a few (like 3) holes drilled in the bottom of the tank and spread evenly from left-to-right (a little closer to the back of the tank than the front--like 12" from the back) with double-nozzled return jets that I could hide with my rock-work. I've seen this done before, but have never used them. Is this a good route to take, or are the extra hole just begging for more trouble with extra places that might leak?