So I bought this tank on Craigslist a few months ago and finally got moved in to the new house and started setting it up. Right now I have this for a sump and overflow. Never had a sump or overflow before, so here is the question: do I fill the overflow with biomedia, and put an airstone in the bottom to agitate?

And then as far as the sump is concerned, does the grid go beneath the bioballs, or the tray I have on top with the holes, or does it matter?
Any help is appreciated.
Thanks,
Ben
Sent from my ADR6350 using MonsterAquariaNetwork App

And then as far as the sump is concerned, does the grid go beneath the bioballs, or the tray I have on top with the holes, or does it matter?

Any help is appreciated.
Thanks,
Ben
Sent from my ADR6350 using MonsterAquariaNetwork App