Just wondering how do I know I have enough Water Curculation in my
planted tank?
I have a 55USGal (48"X12"X24"), with 2213 Filter. My filter inlet is
at the left side of my tank and I have my spray bar on the right top
(1/2" below water surface). This spray bar pushes water 45 degree
down.

BTW is this the correct way of setting inlet and spray bar?

Thanks and Regards

Dominic (At Work)