If the tank it is in has other occupants that are regularly fed it will probably pick up enough left over food to keep it OK. Maybe a bit of shrimp or other fishy, meaty food could be offered to it weekly just as a treat.
You can feed this once or twice a week
Twice a day.
Only when they stink,so the answer would be often.
you feed them every other day to them.
Feed it enough so it doesn't die.
You won't need to feed fish as often because it keeps them "full" longer.
One or twice per day.
Feed them the amount they can consume in about three minutes 2-3 times a day
What to feed a fish is not dependant on whether it was wild caught or captive raised, you feed a fish based on whether it is a predator, omnivore or herbivore. Though wild fish will more often need fresh foods, instead of prepared. At least when first aquired.
At least once or twice a day.
You have to feed a Berta fish 3 pellets in 1 day because I have a betta fish and it eats fine
You should feed your betta fish flakes once or twice a day, giving them only as much as they can eat in about 2-3 minutes. Overfeeding can lead to health issues for your fish.