The Flowerhorn cichlid is considered quite easy to take care of and do not require a lot of pampering from its keeper. The first thing you need to do is of course to set up an aquarium suitable for a Flowerhorn cichlid. Your Flowerhorn will require a large aquarium to do well, since this fish grows quite big and have an aggressive temperament. If you use plants to decorate the aquarium, they might be destroyed by the Flowerhorn cichlid, and plants are not necessary in an aquarium set up for a Flowerhorn cichlid. You should however decorate the aquarium in a way that creates natural territorial borders, since the Flowerhorn cichlid is a territorial and aggressive fish. You can of course keep the Flowerhorn cichlid alone, but if you want to have more than one fish in the aquarium other big aggressive cichlids from South America is the best choice. The Flowerhorn cichlid is a tough fish and can tolerate most water conditions, but it will do best in an aquarium where the pH is neutral or slightly basic. A water temperature around 28º C is recommended.
The Flowerhorn cichlid is a happy eater and you will not have a hard time trying to make it accept food. Its metabolism and feeding habits are similar to that of the other South American cichlids, and your Flowerhorn cichlid will need a lot of energy and nutrients to stay healthy and develop in a good way. It is actually quite hard to over-feed a Flowerhorn cichlid. Your Flowerhorn cichlid will accept most types of food, and pellets are a good base. This base should be supplemented with plenty of worms, crabs, shrimp, or similar types of meaty foods. Feeding two or tree times a day is optimal.
Since the Flowerhorn cichlid eats a lot, it will also produce a lot of waste products which pollutes the water. Frequent water changes must therefore be performed. Changing 20 percent of the water twice a week is a good rule of thumb. If you can only make one change a week, you should change around 25 percent of the water. You can lower the risk of poor water quality by avoiding food types known to pollute the water a lot.