I will also add that you can feed your Oscar more healthier fresh food if that is your goal. Earthworms, chopped shrimp, vegetables, and even crickets are great foods to add to your Oscar's diet. I personally don't feed my fish any goldfish or rosies. I supply them with enough food between the pellets and fresh food. The whole goldfish/rosie debate is something that I rather not get into. Just read up on the topic yourself and make your own decision. I hope your Oscar continues to have a long and healthy life.
