Man o war

I would just like to say that a man o war is not a jellyfish my grandpa and I fought a lot about it (we were joking around)the man o war is a sophoniphore I just wanted everyone to know that it is the jellyfishes cousin and it is 1/300 as venomous as the Irukandji jellyfish the smallest and most venomous box jellyfish and it is the size of a thumb finger nail.