Powerhead is the part of the pump thats inside the tank and guides the current right? Because mine is too big for my 12g (not to thread jack but this thread is just about powerheads afterall) I was thinking about taking some of the links out of it and making it shorter. But then my coral platform I have set up will get blasted all the time. is there any way around this? would you recomend pointing both of the nozzles towards the front of the tank at a slight curve as to push the current across the front of the glass? That seems to be my only option. and if Im not talking about a powerhead, my bad. this site has the really crappy same picture for every one of them.