I can't say this is what I would personally go with, but I do have give you credit for some awesome innovation. My 300 (in the works) is going to be drilled for the gravity outlets with a constant feed in, but that's because I don't want to have to rely on pumps. 
If you can get past that, I think it's brilliant.
				
			If you can get past that, I think it's brilliant.
	
	
 I can make more money, but not more time! There is also the enjoyment of designing and building it. I enjoy my fish tanks but I don't want to spend hours and hours working on them every week. I've just cut a huge chunk out of my maintenance time. It'll never be maintenance free but it's about as close as it can get - as far as I know. If I could figure out a way to clean the gravel and filter automatically I would 
 Any one have idea's?