Powerhead Positioning

[Raamish14]

For the more experienced reefers. Where should I place my powerhead? This is the hello reef 15 aio kit. I have a Sicce micra plus connected to a dual nozzle random flow generator with both nozzles facing the surface. I also have a sicce nano 1000 for my powerhead. I have an ai axis 20 return pump and nero 3 on the way just in case! So I have surface agitation covered with the return nozzles. But what about the powerhead? My main goal is to have as much waste and detritus as possible flowing up into the back left grates where the fleece roller is. This is a fowlr setup that will house nothing but 2 clownfish from ORA.