Caught a cobia some years ago, guessed it weighed about a pound, smallest one I've ever seen. Dropped a bigger one a few years back, and I've seen 2 others caught around 5 to 6 pound. Over summer, I pulled out 3 sampson fish, small ones around the 40cm mark, and a couple of years back, I caught a spotted mackerel on a wonder wobbler lure. Late last year, I watched a groper around the 6 pound mark swimming amongst the blackfish, so any thing is possible.