I guess it would be helpful if I provided the pumps I am comparing them too.
I am planning a closed loop and a sump for my 30g tank, so I will need two pumps. I am planning on running 600-800gph through the closed loop and ~300-350gph through the sump.
For these 2 pumps, I am looking at four brands: 2 low end, 2 high end brands
Quiet Ones and Ocean Runners
Pan Worlds and Eheims
So mostly I am asking how the ocean runner compares to the higher end pumps.