Nothing happens fast in this hobby, especially when setting up, definitely take your time, you'll be much happier down the road! I've said it before, its hard not to have tank envy with so many beautiful tanks on this forum, but it takes a while to get there with many ups and downs along the way! You've found a great place for help, keep asking questions. Your build looks fantastic so you are well on your way...what's a hiccup here and there, there will be more!! :lol:

I noticed Myka suggested the Quiet One 4000; I have one working quite well for me on my 75 gallon. I also seem to recall they do a high head version which might be better at dealing with any back pressure from the 3/4" fitting acting as a nozzle.
Mine, however, is not so quiet...

Rob.

I'm surprised Myka didn't mention an Eheim 1262 as another choice