I think there is a bit too much water movement in my aquarium (36 gallon). What are some tips for reducing this? I'd rather not use the spray bar for aesthetic reasons but may have to. Can I reduce the outflow on the canister filter by partially closing the outflow switch? I read somewhere it is safe to do that on the outflow just not the inflow, but I'm still not sure. I feel like it's a powerful filter for my aquarium so I'm open to tips on reducing current. Thanks!