10-16-2011, 02:12 PM
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Once a day is sufficient for all fish except fry which need more frequent feedings. And missing one day or more each week will do no harm. Skipping the water change day for instance; fish should never be fed prior to a water change or any disturbance inside the tank, or any netting.
I don't know why almost all fish foods recommend several feedings daily. What goes in must come out, and this is only going to add to the tank's bio load and very significantly; just recognize that two feedings instead of one daily is doubling the waste entering the tank.
Plus, the fish do not need all that nutrition, and it can be more harm than good. Like overfeeding your dog, or us; without burning it off, you know what happens. Fish will be much healthier with less rather than more food.
Someone mentioned variety, and that is crucial; 3 or more different types of food will ensure better overall nutrition, and one type should always be vegetable-based (the "greens"). Bloodworms should not be fed more than a couple times a week; they are high in fat, and very low in nutritional value compared to good flake/pellet foods.