I would agree arowana are hardly a fish for begineers
hard·ly (härdl)
adv.
1. Barely; just.
2. To almost no degree; almost not.
3. Probably or almost surely not.
4. With severity; harshly.
5. With great difficulty; painfully.
har·dy 1 (här
d
)
adj. har·di·er,
har·di·est
1. Being in robust and sturdy good health. See Synonyms at
healthy.
2. Courageous; intrepid.
3. Brazenly daring; audacious.
4. Capable of surviving unfavorable conditions, such as cold weather or lack of moisture. Used especially of cultivated plants.