Help choosing Pumps

[stevem650]

I have a redsea reefer 450 which is 59"L x22"H x 20"W. I just got back into the hobby after 5 years. I'm keeping SPS and LPS corals and looking for 2 Tunze pumps with a controller that would run both pumps. I want to mount both pumps on the back glass. No sure if the Nano Stream or Turbelle Stream would be best for my setup. The Nano streams come with a controller so can 2 Nano Streams be linked together using the controllers? Can you recommend which setup would work best? Thanks