Return pump too fast/weirs blocked - draining back of aio tank

[katsreef]

Okay so the flow of my tank has been perfect until last night. I put mesh over my weirs because my goby decided to take a trip through them to the back chambers of my tank. Now the mesh is not letting water in the back fast enough and my ato is dumping in my tank. Return pump is 1.5 sicce on my 20g long and it’s on the lowest setting already. Any way to reduce the speed more or any alternatives to mesh netting so let a bit more flow through??

don’t want my goby slipping through again or flood on the floor

 

[Troylee]

You can put a small valve on your return line to restrict the flow or create head pressure on the pump..

 

[katsreef]

You can put a small valve on your return line to restrict the flow or create head pressure on the pump..

Thanks, I’ll take a look at this!