Instructions
Make sure you are buying fish pellets for fish of the Chichlid variety. Remember that all fish don't eat the same type of food.
Match the size of the pellets to the size of your Oscar fish by referring to the label on the food container. Your fish might be not eating because the size of the food is not right for them.
Keep food away from your fish for a couple of days. Sometimes all it takes is enough time for them to feel hungry again.
Change the type of food you are feeding your Oscar fish for a few days. Oscar fish eat fruit, so rip of pieces of fruit about the same size as the pellets you are feeding, and see if the change in routine gets them back to eating pellets again in a few days.
Switch the brand of pellets you are feeding your fish. If your local pet store only carries one brand, consider buying a new brand online.
How to Get Oscar Fish to Eat Pellets
The Oscar fish is one of the most popular tropical fish. While they usually are eager to eat, Oscar fish sometimes will get into a mood where they are not willing to eat the pellets you are feeding them. This usually does not mean that there is something wrong with your fish. It just means that you need to figure out why they are acting the way they are in order to get them to continue eating the pellets.