Hello BAR friends. Many years ago, I converted a glass 29 gallon freshwater tank to a reef tank. I did this by painting the back of the rear glass blue, having a friend drill a hole in the back, adding a drain, with a flexible black hose leading to a 10-gallon sump. I have been using a Maxi Jet 1200 powerhead/pump (that pump has lasted forever) as the return pump, connected to a flexible hose that leads up to the display tank. I need to upgrade the plumbing because the flexible hose sometimes detaches from the Maxi Jet pump, causing a reverse siphon) and the flexible hose is just not a secure way to operate a return line. The top of the tank is about 48 inches. Which return pump do you recommend that I use, in order to use threaded PVC pipe and create a secure line for the return? Thank you in advance for your advice /suggestions (which might include that I upgrade to a more secure refugium light).