In a small setup, feeding 24/7 is not practical. In our production tanks and ponds, we use belt feeders that use a clockspring that is wound daily. Food is poured onto a belt and it moves the full length to let the food fall slowly over the day to be constantly available.
At home in my small tanks, and now that it is my full time job, I feed small fish 15-20 times per day. If your filtration allows, you can over feed and let the fish browse some during the day.
