Hi, New guy here. I'm trying to adapt my 16mm (5/8") ID return hose on my new Red Sea Reefer 250 to the 3/4" or 1/2" output barb on the Jebao dct 4000 return pump that I bought. Does anyone know of a way to do this using parts that are available readily in the US? I tried Home Depot and Sprinkler World, as well as two plumbing supply houses, and the only thing I found was a 5/8" to 1/2" white plastic barbed adapter at Home Depot. It says it is good for 150 psi, but I'm not sure how well it works with salt water. Thanks for any help you can provide.