Any arowana owner who started their hobby by purchasing a small tank will find themselves in a situation where they need a larger tank. If you’re only changing a single arowana, you’re pretty safe to do it yourself. However, if you have a community tank, more arowana care is needed and it is recommended that you seek professional help.

The items you’ll need for proper arowana care when you make the transfer are a Styrofoam box (big enough for your arowana, of course), some stabilizer, and a large plastic bag. Stabilizers help calm down your Arowana during the turn by leaving it in a slightly stunned state so it doesn’t have as much trouble.

Now that you have all of this set up, remove some of the water from your original arowana tank to prevent your fish from jumping out if it gets nervous. Follow the guide on using your stabilizer and drop the proper amount into the tank.

The next step would be to open the plastic bag and let the fish swim in it naturally. Trying to force him into the bag is never a good idea because he will start to struggle and may jump out or hurt himself. Once your arowana is in the plastic bag, add a few drops of stabilizer to the plastic bag and set it aside in a safe place.

By now you should have prepared your new arowana tank and filled it with properly conditioned water. Do one last quick check to make sure everything is in place before putting the fish back in. Lastly, go ahead and slowly introduce your arowana into its new home. Start by submerging the plastic bag in your new tank for at least half an hour. This is for the fish to get used to the temperature of the water. Then put some of the freshly cycled water from your new arowana tank into the plastic bag to slowly acclimate your arowana. Then you can finally release the fish into your new arowana tank. Also apply proper arowana care techniques for safe transfer of your fish.