So, ive been running two jebao 90s on a 90 gallon tank, I cannot for the life of me get the flow to be a nice and gentle breeze, it’s either no flow or a ******* hurricane. I have my pumps aimed at the surface, I have them on both ends of my tank on the side glass, I run the left one of pulse and the right on wave mode, even when I mess with it and do other settings I still have no luck, any advice?