Only if you're feeding once a day. You often want to feed 2 or even 3 times a day with a smaller amount at each feeding time. This tends to lead to less wasted food.
You feed fish during the day when the light is on. If you feed them 3 times a day and the light is on for a 12 hour period, that’s once every 4 hours 3 times followed by 12 hours of rest. What analog timer can do that?
