heh, didn't see this post... I just got done recommending crayfish to you in another post!
If you won't get bored with them when they're big (depending on species they usually get 4-6 inches as large adults), they're great and have lots of 'personality.'
scampi wrote:is there any freshwater lobster/prawn that looks alot like red lobsters? if so, which ones ?
If you dislike the destructive tendencies of the red morphotype of Procambarus clarkii (depicted here, here, and here), there are some outwardly similar reddish Macrobrachium species, as the "Guinea Shrimp" depicted here.