Hi,can i ask for your guys info.recently,i just saw some aba-aba in my local fish shop.before that i never know seen a fish like that.then i search about them in the internet.i was like "man,what a BA dollface looking fish" and many source said they are kind like "smiling killer" that like to wipe out their tankmate.is that true?are there no fish we can put with aba-aba?thanks