I have an acrylic tank I’m setting up. I’m new to this, so want to make sure what I’m considering will work. I’m installing an internal overflow that’s 6” wide by 5” tall. I’m looking at installing a 1” bulkhead as the primary overflow, and a 3/4” bulkhead that will be higher as an emergency overflow. Any thoughts? Will two bulkheads in that limited space/that close to each other be a problem structurally?