How long is too long when pumps are off?

[coraal]

So I've been spot feeding my coral these past few weeks to see if it helps the growth of the coral and I usually turn the pumps off when I feed so that they can eat easier....

I was wondering about how long should I turn my pumps back on before it starts to harm the fish/corals in the tank... I can't get a good grasp of the time since I'm scared that the fish won't get any oxygen and so I turn the pumps back on but the corals aren't done eating yet...

Any feedback would be nice, Thanks

 

[jedimasterben]

They'll be fine for a couple of hours, but realistically everything should be done eating within 15-20 minutes or so. I would leave your skimmer off for a while after feeding, though, keep as much food in the water for as long as possible, then let it get skimmed out.

 

[Genesis Corals]

I have gone 13 hrs before and everything was fine (power outage), though I did stir the water a bit towards the end. When I do feed my corals at night I will leave the return pump off for an hour or more, with my powerheads still running. Unless you have 100 fish packed into a nano I wouldn't worry about oxygen levels for several hours.