500 or 700?
 

I'm going to be buying a Danner Mag-Drive pump soon, I see that the 500gph pump is 50 online(went to a local petsmart today, they wanted 90, hah), but for $3 more they have a 700gph pump. Does anyone have the 700 pump? I can't find any specs on it anywhere, I'm wondering if it's too big to fit into a resovoir. I really wanted to stick with 6x6x4 resovoir if possible, also is it significantly louder than the 500?

Anyone using the 500 tell me the size of their resovoir?

Thanks...

I'm only using a 350gph Danner, but there was no increase in noise over the 250 I had, as long as you get the bubbles out you should be fine (this is where all my noise comes from).
I'm pretty sure the 250, 350, 500 and 700 all have the same size case.