a picture would be nice,n u can google for which channa look like it.forest snakehead could be c.lucius/c.bankanensis or c.melasoma in my country. but if i take a guess,i would say c.lucius. i'm not worry bout snakehead attacking the giant gourami,it could be the other way.at the moment, I'm mixing my snakeheads with my red tail gourami.