Astrea die,
Trochus die,
Nerites are TINY,
Nassarius hide all day,
Turbos are bulldozers,
and almost all of them get eaten by hermits...
I have a handful of Nerites left and 1 astrea, i think he's still alive.
I just buy blue spotted sea hares now. I LOVE THEM! they're the ugliest thing you could put in your tank but they are better than turbos at eating algae and faster then you'd believe, and no heavy shell to knock over your corals