Join Date: Jul 2012
Location: Corpus Christi, Tx
If adjusting the flow isn't enough I'd make a homemade spraybar. Just get some pvc with 90° elbow and drill the holes. If it is still to much either use a longer piece or drill larger holes. For the color you can always rattle can it black (or whatever color you want). I did this a while back to decrease circulation but keep the same flow (GPH), and cost me about an hour of my time all together and less than $10.
I would not add anything to slow the flow by obstructing it, as this simply puts extra strain on the motor. If things are that bad you would be better off buying a filter with a lower GPH rating.
What size is your tank?