depends on what your feeding. for spot feeding and feeding flake/ pellets/ other meaty foods, i dont see any reason to turn them off.
if your feeding something like cyclopeeze, or DT's oyster eggs, youd probably want to turn them off.
Teen, its like you are one of the only ones who always seem to answer my threads....... Thank.
I feed the tank half a cube of Cyclopleeze, and half a cube of Coralife Coral Food. Every 3 days.
I turn off the filter and skimmer while the feeding is going on.