If your Fish eat pellet then use automated feeder set the time that u alway feed for 3 days should be be a problem I use to put the feeder even I at home it will auto feed 3 time night time I will feed with mysis when they use to the feeder they will go there around that time u put even Fish u don't feed them 3 days should be no problem too but to be safe put feeder Sent from Singapore Reef Club mobile app