Suggest A Monster Fish plz.

[convict360]

I was doing a little further digging following thinking on this thread, found this article for you:

http://www.practicalfishkeeping.co.uk/content.php?sid=5319

This is my favourite excerpt from the article lol:

"Activity levels confuse and distress tank mates. They are pretty much relentless; going along the front, up sides, down sides, around the fish, through pipes, and trying through the fish as well!
Whether they are brave or superbly dumb is unknown, although likely the latter. In a fight, they will not back down. Big cichlids are an annoyance, other aggressive catfish a joke. They’ll scrap and usually win.
Clarias have a venomous sting. In front of the dorsal fin and alongside the pectorals are defensive daggers that the fish will happily use in a ruck — and against any handler, too. "

 

[THQ]

I would not put ANY arowana in a 6x2x2 for life. I have the same tank, and I entertained putting in a small and relatively peaceful southern saratoga/arowana (scleropages leichardhti) in it, but all the advice I got, including from the LFS I was planning to buy it from, was that it is too small. Even the LFS, that would profit from the sale, told me that. All arowanas can grow to 3+ feet long under optimal conditions. Your tank is only double that length, and the width is less than their length, so they will be cramped and get gill curl and be unhappy. It's like putting a fully grown 14" oscar into a 2.5 foot long tank. For any arowana I would say at least 8x3x3 minimum.