Sump/fuge for a large cube

[TheReefGeek]

If there is no room under tha stand to raise one up, then you can connect the two tanks with pvc and two bulkheads at equal height. Have the water first go into the fuge, then through the bulkhead into the sump. This should work as long as the water level maintained in the fuge is higher than the sump, which will generally be the case.