nudi..'

what is this? is moving under my sarcophytum
thanks

 

It looks like a snail without a shell but I am just guessing.

 

Sea slug?

 

vermatid snail?

 

if in doubt, KILL IT!!!!!

 

Black Tropical Abalone, harmless algae eater. I have tons of them.

 

+1 or a black stomatella - either way, beneficial for the tank

 

Possibly "Dendrodoris nigra" Sponge eater. Hard to tell from picture! Usually pure black with white tips on the antennae.

 

It's probably a black Stomatella species, although I can't really make out a shell. The shape and the antennae look right, though. If it were a black nudi, it would at least have rhinophores, and probably an external gill on the back. The only other thing it could be is a Scutus species, but they normally appear flatter. I suspect geekdafied's black abalones are also Stomatella snails, since there aren't any tropical species of Haliotis that are black. All the abalones have holes in their shells, while the Stomatella species don't. They look a lot alike, but are actually in different families (Haliotidae vs. Trochidae). Either way, it's probably a safe algae grazer. I also think it's silly to just kill something because you don't know what it is. I think a better alternative is to just FIND OUT what it is

Cheers,


Don