Can you please explain again how the water flow is? I see the overflow on one side with the waterfall, is that just fed with a internal pump or something else?
The circulation pump runs along the back wall of the aquarium right to left.
The flow goes under the roots through an open area, hits the left wall of the tank and circles forward.
At the front glass the water circulates back along the front of the tank, left to right giving the impression of a unidirectional stream flow.
Right side of tank, water circulates back towards the pump
and back on its merry way it goes.
