Not sure what my scrubber cost to run? Just the electricity for a pump and 2 lights. Mine is on a 120g. Too soon to say how effective it will be. It has only been running for 4 weeks now but I have good growth on the screen and one type of dark, thick algea is almost gone.
Cost:
pump =$26 (including s&h)
2 light bulbs = $13
1 light fixture + $5 (I already had one)
screen = $1
Pvc pipe and elbows $3
Grand Total $48.