The Beef Heart Recipe
Why We Don't Recommend It NowThe beef heart recipe is very well known amongst fish keepers, especially discus fish keepers. People used to feed this high-protein food to their fish to encourage growth. However, animal meat, even lean meat is not really the healthiest foods you should be feeding your Oscar. Saturated fat which will still be found in the lean meat can actually damage a fish's liver and cause a fatality if it's included in the diet for prolonged periods of time.
Therefore, I'm very sorry but we are not providing the recipe for this food anymore. We would actually encourage you to choose more suitable and healthy foods. You can find all the information on what to feed your Oscar by going to this article
Having said this, it's not our intention to dictate to you what you can and cannot feed your fish. Rather like all the advertising that tells us that smoking, drinking, and eating unhealthy foods is bad for us, only a small minority of people who do have these vices will become ill. The same goes for fish, people have been feeding beef heart to their fish for decades and most of them probably haven't experienced any problems whatsoever. But at the end of the day it is our job on Oscar fish lover to advise you on what is the best and healthiest food to feed your Oscar fish.