By Lakshmi.Gryzek 2010-07-04 19:50:10
All monsters and large fish will have "!!!".
Also, if the message says something positive (you have a good feeling or something similar), this mean it's a monster.
When the message sounds negative (you have a terrible feeling or something similar), it's a large fish.
Messages that sounds "unsure" mean it could be a 50/50 chance of being a monster or a large fish.