Just have a long (2m) and wide (0.9m) tank, big filter and change water frequently. Make sure the aquarium is well covered. Other than that, this fish is fairly easy to keep.
Thanks ctoychik He is at this moment just 5 cm. But in the future i needed a big aquarium. I change new water already frequently because i have also discus fish, good u tell me that it is a easy fish to keep.