76 to 84 degrees Fahrenheit
The Flowerhorn fish is no different from other tropical fish when it comes to temperature of its habitat. It flourishes in temperature between 20-30 C. It is recommended to maintain a temperature between 28-31 C.  The Flowerhorn fish is able to thrive best in water of tropical temperatures, ranging from 76 to 84degrees Fahrenheit. The optimum temperature would be between 79 and 83 degrees Fahrenheit. It is advised that you maintain the optimum water temperature when keeping a Juvi or premature fry.PH Levels. Flowerhorn fish can survive in water with a neutral pH value of 6-8. However, in the case of really aggressive Flower Horns, it may unfortunately be that it is possible to keep one Flower Horn only. A tank for this purpose should offer space of 1,20 m * 0,60 m * 0,60 m at least. In order to keep single fish in good humor, you can try whether it will get along together with Convict Cichlids. These large cichlids are from lakes in South America, where the water parameters are soft and slightly acidic. Therefor, the optimum water parameter for the flowerhorn should be close to the waters of its origin. pH of about 6 -7 should be best for your flowerhorn. If the water in your location is too hard, just add peat or peat solution into the water to soften it. Optiomum Water Quality For Flowerhorns. Flowerhorns are ‘hardy’, which means this fish are highly adaptable to different water conditions, including bad water conditions. However, it is often being mistaken that it is all right to keep your Flowerhorn in bad water condition since they are termed as a ‘hardy’ fish. Setting Up Your Flower Horn Fish Tank. As Flowerhorn’s ancestry originated from the Central and South American cichlids, it is essential to set up your tank to a closely simulated natural habitat for the fish, which at the same time, pleasing to the eye. Various sizes and designs of fish tanks are available at your local fish store. Optiomum Water Quality For Flowerhorns. Flowerhorns are ‘hardy’, which means this fish are highly adaptable to different water conditions, including bad water conditions. However, it is often being mistaken that it is all right to keep your Flowerhorn in bad water condition since they are termed as a ‘hardy’ fish. It’s better to keep flowerhorn fish alone as a rare show fish. It is rather territory-dependent fish with aggressive temper and rather bad behaved as for its tank mates (except for big tanks of about 175 gallons capacity). If the fish is kept alone then minimal tank capacity should be 70 gallons, but the larger the better. If a couple of fish is kept in a tank, its capacity should be 100-10 gallons, if flowerhorn tank mates are other cichlids – 175-200 gal capacity tank is required. *Nitrate* 0. *Temp.* 82 to 86. and they are also at best potential with clean water.. meaning it is best to do a 10 - 25% water change every 2 week interval and also it is beneficial for your fish health to add conditioners and aquarium salt for stress coats. Listed below are some of diseases, treatment, symptoms and preventions.
http://flowerhorncareandmore.blogspot.com/2008/05/basic-flowerhorn-care-tips.html http://f15louhan.blogspot.com/2011/10/complete-flowerhorn-guide.html http://www.flower-horn.de/flowerhorn.html http://www.flowerfish.com/managing-your-flowerhorn-aquarium/ http://www.flowerfish.com/managing-your-flowerhorn-aquarium/ http://meethepet.com/basics-of-flower-horn-fish-keeping/ http://www.flowerhornrus.com/sicknesspreventions.htm
best temperature to keep a flowerhorn in