Jebao pumps/wo-40

[b-ridge]

What is the most powerful setting on these pumps? I have the newer controller but not the newest one that just came out. My tank is only 5 feet long(60 inches long) and I'm not getting the type of power/production out of these pumps that I have seen on 7 foot long tanks. Just wondering if I am doing something wrong

 

[albano]

You know that the dial is reverse for increasing speed? Turn left to increase