Flower Horn Tank. Flowerhorn aficionados suggest something closer to 150 gallons as a tank size for one fish. Most keepers suggest something like a 50 gallon or a 55 gallon tank for a single fish though 75 gallon is much better and 150 gallon is the lowest suggested for a pair as they can be quite aggressive and have large spawns.
However it also depends on the number of fishes you add to your aquarium. Up to 16 inches diet. Freshwater few planted compatibility.
Flowerhorn in tank habits and customs of the flowerhorn fish.
He is also known as a breeder. Flowerhorns are large aggressive cichlids with that said they produce a lot of waste and often maul their tank mates. However if the fish are given enough space and are placed alone in the tank a 70 75 gallon tank would also be sufficient. However as a rule those who keep fish come to conclusion that this fish must live alone in a tank.