I just want to see if there is a build thread for this tank where the filtration is in this table top unit. Looking forward to finding it, if it’s out there!
You would have to have some kind a divider in the pot maybe acrylic or PVC. I would probably go with a bulkhead to let the water in the pot. One on the tank and one on the pot or maybe a uniseal. Honestly though HOB filters make a mess and a lot of noise.
I want to say there was an advanced aquarist article. Unfortunately I'm not sure you can still find it. Not 100% sure but I think that's where it was. It may have been elsewhere..