Hi,
I have seahorses, they are slow eaters so I turn off the pumps while they feed... fish like to chase/hunt their food down, so for regular fish I don't. There is more for your fish to eat besides what you feed them, live rock is loaded with little critters and bits of algae growth. I'm sure you noticed your fish nip and pick at the rock, they are eating and grazing.
I worked the night shift for many years, I had my fish lights on my schedule so I could enjoy watching them. I had a wood panel cover I put in front of the tank in the day to block out light (I had a very bright room) I wanted the lights on through the night when I was up and about.
If you usually don't turn on your lights until you get home...you don't have to change your schedule, just feed them a little after the lights are turned on. There is no reason to turn on the lights, feed the fish and turn off the lights again. That isn't a natural cycle of lighting to leave the lights on for 15 minutes or so for the fish to feed. If you turn on your lights in the morning, and that's when you want to feed your fish, fine...but that would mean that soon after you get home at 7:00pm, it would be time to turn off the lights, and then you don't get to enjoy your fish tank.
I don't recommend feeding the fish more then once a day, overfeeding is the #1 cause of pollution in fish tanks, which leads to all kinds of cyanobacteria outbreaks and nuisance algae. I also don't recommend starving your fish because you are afraid of the above mentioned. I say that because some people feed their fish once a week or once every few days...I don't think that's a good thing, and it will stunt the fish's growth.
