Arowana Fish are freshwater fish and are the largest freshwater fish to be kept as a pet. They can grow to between 3-4 feet in length if the conditions are right and if their growth is not restricted by water conditions or tank size. Having the right water conditions within the tank is one of the most important factors in the keeping and growing of a healthy arowana.
For an arowana having good water conditions within your tank generally means having, an appropriate micro-organism bio-filtration system which will allow the right bacterial levels to help promote amino acid decomposition and protein digestion. Now as complicated as this sounds the filters and chemicals that are available today will do this work for you.
Another very important factor when you get the micro-organism system up and running is to try and increase the oxygen levels within the water. It is important to spend time at the start working and adjusting your tank water as once you finally get the levels you are looking for then it is easy maintained. But if you put the fish in to early and the conditions aren’t right, then your fighting an uphill battle to get them right before the fish becomes to stressed.
The PH levels of the water in the tank is another very important factor that should not be forgotten when getting set up. The PH scale measures how alkaline or acidic a solution is. The arowana fish is a tough and resilient breed of fish but I would recommend to keep your water PH levels at a neutral level or a slightly acidic level. It is very important to check your PH levels on a regular basis. Something as small as the type of plants, peat or C02 system you use in your tank can effect your PH level. It’s easy to check as there is special kits available which give very accurate readings.
The hardness of the water is also worth looking into as arowanas like a soft water environment.
Next you will have to concentrate on the water temperature. The perfect water temperature for arowanas is between 26C-30C or 79F-86F. As we know the arowana is a very resilient fish and all though it may be able to live in temperatures slightly outside this range, it is not good to test your fish. Any sudden rise or fall of water temperature can also seriously effect or shock your fish and can lead to the tail of your arowana dropping.
Now that you have your water conditions right and have more than likely added your fish to the tank you need to do water changes at least twice a week. Arowanas are carnivorous fish and they tend to produce a lot of waste. This waste can lead to ammonia and nitrite problems within your tank so changing 20% of the water twice at least week is very important.
I hope this will help you with the arowana tank set up, if the initial set up is done correctly then it makes your life easier down the road. So its important to get this right from the start so that your fish can have a lot a happy life.