I've heard they are not to other species, but very conspecific aggressive. I just got a small wild caught pair. They went straight to each other right out od the bag, but I'm TRYING to keep them divided during quarantine, but every night when I get home from work, one or the other is somehow jumping the divider.
They are a little banged up, but I can already see their potential and seem to be bonded/bonding already. I read that they pair up young, but do not spawn until they are 18 months old. I will get pics/vids when they are done quarantining.
I'd like to see pics and hear about experiences too. They are beautiful and awesome preditory sp. Rapps had them recently, and wish I had the tank space.