I got a small black in close off Mooloolaba yesterday. Water temp was 25.7degrees and nice and blue water until the wind got up.
Edit: he was sun baking on the surface as we went past and dove down to take a rapala x-rap 20feet that looks like a slimy. Skirt on the surface didn't get touched. No slimy's around Mooloolaba at the moment. My bet is when they show up in numbers, it will be on for young and old.