Does anyone have advice for inflow/outflow equipment placement in a 20L aquarium? I'm running a 2215 in mine, with the intake in the back left corner and the spray bar attached to the top of the left side, directing water across the length of the tank. The current this setup creates appears too strong for my fish, discouraging them from swimming in the middle or top regions of the tank.
Is it possible to mitigate the strong current through outflow placement, rather than reducing filter flow? I'm not attached to the spray bar, if removing it would help.