I'd say it all depends on how it's working in your tank with your hardscape and other circulation. If your happy its creating the flow in the right place I say leave it. Return pipes come in all shapes and sizes aimed at creating different flow patterns suited to different situations. If the 'jet' is getting the flow where you need it then happy days. If its too directional then remove it.martinmjr62 said:Ceg, I stand corrected. Does this mean I should run it with or without the diffuser??
Sent from my iPhone using Tapatalk