(09-18-2012, 11:46 PM)dashboardc33 Wrote: I have never fasted my aquarium fish before. There have been times where I have been on vacation for a weekend and they haven't eaten, but I have never intentionally not fed them. I wonder what the purpose of this is? My thought is, is that fish are not always hungry and they may not eat the food that is given to them right away. So, what happens is that the food goes to the bottom of the tank and probably makes the tank pretty dirty after a while if the food is not ate right away.
Some people believe fast fish - skip a day or two feeding each week, can make fish more healthy. Although overfeeding is one of the top causes for fish dying in home aquarium, I personally do not believe fasting brings any benefit.
No, you should never see fish food at the bottom of the tank unless you have bottom feedings who will chew on them right away.
In a healthy aquarium, fish should be all come to food immediately after you drop it into the tank.