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- Size is important because it affects the growth of the fish. If there is insufficient space for the fish to swim, it can develop a stunted or hunched body or become sickly or how it swims whether it is straight swimming with fins fully opened.
- Minimum tank size should be 6 ft by 2 feet
- Length of the tank should be at least 3 times the length of the fish and the width should be 1.2 times the length of the fish
- Tank should be placed in a quiet area of the house where the fish will not be startled owing to much human movements around it. This can stress the fish and has an impact on the base colour, particularly for the Malaysia Golden.
- Exposure to some natural or evening sunlight ensures good colour development but too much sunlight leads to problems such as algae and change in water temperature
- The tank light should not be switched on first when it is dark as the sudden light will startle the fish causing it to panic and it may injure itself. The room light should be switched on first and after a few minutes, switch on the tank light.
- Tank cover needs to be secured properly for Arowana. Arowana are remarkable jumpers and most Arowana deaths are due to jumps out of the tank because the owners have been careless. Light tank covers are not recommended as Arowana have been known to knock them off and jump out of the tank.
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