I'm aware of what the sticky says, but if you read the link I posted from flex pvc, it says different that's why I'm confused. I figure starting with the 3/4 and moving up to the 1 inch is smarter than starting with the 1 inch then needing the 3/4. I received the pump and bulkhead today. I'll throw a picture of the pump up later.
Tomorrow, I'm going to frame up the front of the lower tank, and take apart the 55 gallon aquarium. Then I have to head home for easter break, While home my girlfriends brother is going to cut the glass for me.