Need some advice for set up

[yellowworld]

Originally Posted by Tacoyaki

Would doing a diy pvc overflow work for both tanks?

It should. So long as you build them the same so that the flow rates are the same, you could have the top drain into the bottom and the bottom to the sump then pump it back up to the top

The only issue i can see is that the bottom tank might get dirtier then the top one but that might not be a big deal

[Tacoyaki]

Well I'm planning on keeping the bottom tank as a frag tank/Iso, and the top as a display. So the bottom tank should be clean or that's the idea anyways. And thanks for your help I'll go give it a shot first thing tomorrow