Placements of inputs and outputs?

[chrisstylez1]

Ok, I have a 30g sump, and 2 fx5s on my 150g. As of now, I have the overflow box and 2 inputs on one side of the tank and all the outputs on the other. But I notice all my fish stay to one side with the inputs except my two 9 inch Oscars and my small arrow-they swim the whole tank. My two ten inch id sharks, 3 jds, 4 bichirs and 2 ghost knives will stay near the input side. The flow isn’t strong and I basically have ball joints closed to slow down the flow as much as possible. I am thinking about switching the outputs to the middle and overflow box on one end and 2 fx5s inputs on the other. I don’t mind the id sharks not swimming because they are going into a friend’s indoor pond when they hit 13- 15” but I want my other fish to swim so I can enjoy them more. Has anyone dealt with this before? Do you think switching around inputs and outputs will help? All ideas and comments are welcome!

 

[CHOMPERS]

...but I want my other fish to swim so I can enjoy them more...

Imagine if you were on a treadmill and had someone standing over you with a whip, and then gave you a crack every time you wanted to quit. Basically, your fish are telling you that they are tired of swimming against the current when they huddle in a still area. Fish that evolved in slow moving bodies of water and lakes will die if you make them fight current all the time.

 

[Grover]

Put your outputs at different depths. One surface and 1 deeper so the current is spread out a bit and there are more calm spots. Nice filters though.