Okay, so I promised a pic to explain the pump orientation.
Here we go:
Don't mind the teflon tape holding up the magnet, apparently these magnets will hold through 15mm glass when there is water, but dry they tend to fall. I want the pump to be at the top of the hole.
In regards to space, there is about 4 1/2" separating the two pumps (Vortech will be above, Tunze below) and I don't really have anywhere to go up with the Vortech as Plumbing, etc, makes moving it difficult...no to mention cutting through wood up against glass.
Murphy doesn't like me whole lot and I have to consider that in any changes too.