around the seaweed beds and wharves, elusive and hide as soon as a big shape arrives,
when you catch them at 5 to 10mm the ones with red spots on the belly are blue mao mao the others are sweep
at about 20 mm the blue mao mao have a yellow belly
had 3 at 20cm in the big tank a beautiful powder blue from above, sadly the black shag ate them so have to catch some more