We picked up the 72 gal Bowfront today. It was a saltwater set up in its previous home, drilled with weir to drain into a 20 high sump. The question of the day is what should I do with the sump? I'm reading about trickle filters and see that there is some controversy about using them in planted tanks (removes the CO2). Furthermore, I think it will be quieter if I keep the pipe from the weir submerged. It has a filter sock, is that enough mechanical filtration? I could also DIY a container to hold filter floss below the outlet pipe. Any thoughts or advice?