I recently got a 6x2x2 and dont know what to put in it... I own a sailfin pleco, about 15-20 cms, a brown ghost knife about 15-20cms, and a male king kamfa in its own tank about 15-20cms..... I want to put them in the new tank (maybe not the flowerhorn, he's pretty aggressive), possibly with a peacock bass and not sure what else..... Any ideas? What other fish woul go well?