I would worry about letting water sit uncirculated in it for overnight.
Here is my feeding routine. I initially turn my Koralias and return pump off when I feed. After I target feed my candy cane, torch, fungia and rics I turn the Koralias back on but let the return off for an hour or so. The
skimmer keeps the water in the
sump moving and the Koralias in the tank keep the food moving for the filter feeders.
