Hello fidojoe. i need to add some input here about the fish you want to keep. Well one in particular. The Watchman. Im no expert and anyone with better knowledge please step in. I had a goby for a long time in my 90 with a dsb and found it to feed mostly on the substrate. I never saw it feed from the food i fed the other fish and am wondering if it will perrish from no substrate to sift and feed off of. Just a thought. When i went bb i lost most of my fish from ich
so i never had the chance to see its feeding habits in this tank.