I ordered this series on cd-rom from Himeya The Asian Arowana is a difficult fish to breed, more so under glass tank or fiber glass pond conditions. It will only breed in natural, earth ponds when they reaches maturity between ages 3-5, depending on color variation and water conditions. Sexing them is difficult. However, the male's mouth is wider and deeper as the Asian Arowana is a male mouth brooder! Each spawn will only yield 30-80 eggs and stays in the male's mouth for about 5 weeks. Each egg is orange-red in color and is very fragile. Pre-spawning behavior lasts 2-3 months, with both parents swim around the perimeter of the pond day and night The Arowanas are territorial and aggressive fishes. Therefore, never keep 2-3 fishes in a single tank. Instead, keep one alone or 6-10 together. When in a group, their aggressiveness tends to be subdued. Notorious as a great jumper, care must be taken to place a heavy object on top of closed covers.They are known to grow up to 3 feet (90cm) in the wild and can weigh up to 7kg. They prefer neutral to slightly acidic, aged water (pH 6.5-7) and a temperature of 28-32 degree celsius. Depending on tank sizes and number of fishes, it will be good to change 25% of the tank's water once or twice a week. Never conduct a 100% change in water as it is very sensitive to Chlorine and other chemicals/medications. Feed live or dead prawns, small fishes, insects, frogs, etc., once or twice a day. For convenience, half a kilo of fresh prawns from the market can be frozen into many smaller packets and defrosted daily as required. As the Arowana is a surface dweller,when deciding on the size of the fish tank, depth is not so much a factor compared to surface area and width. Young fishes of 6 inch (15cm) can be kept in tanks of 4 ft by 1.5 ft by 1.5 ft(depth). Adult fishes of around 1 feet (30cm) would be better off with a 6 ft by 2 ft by 1.5 ft (depth)tank. |
