I don't feel feeding once every other day is great. I'm sure you can be fed once every other day and still live, but will you be healthy, thrive, and be happy?
In the ocean these fish must eat more than once a day. These creatures are in our care and depend on us with their lives.
Feeding twice a day for me is not over feeding. In the mornings I feed my fish a light meal of frozen Cyclop-eeze and maybe a few flakes of spirulina. I add a little at a time and I take a look at their stomach to gauge how much they had to eat, if they seem plump but not bloated I stop adding food. At dinner time they get mysis, prepared sea food, or pellets.
I try to keep my fish healthy by giving them a good diet. It's a real pain in the morning because I have to get up an extra 15min for feedings, but to me it's worth it to have happy healthy fish. I also have a smaller tank so I don't get all the pods
and critters that people with larger tanks have so I must feed more often.
Whatever you choose, your fishs are counting on you.