lettered olive snails

[whitetiprs]

has anyone had any experiance with these guys? good or bad for a reef tank?

[seaham358]

never heard of a lettered olive snail.. any other name for them

[Fluff]

Olive snails are in the same family as welks and other preditory snails. I'd skip them.

[whitetiprs]

well I know that they are predators but I do not think that they move off the sand bed. so they might be good as sand stiffters.

what about conchs? are they good?

Originally Posted by whitetiprs

well I know that they are predators but I do not think that they move off the sand bed. so they might be good as sand stiffters.

Olives (Oliva sayana in this case) are predatory within the sandbed. They will primarily consume other gastropods (bivalves mostly) and worms I believe. Once done, they usually die. They are of no benefit to the tank.

http://www.shellmuseum.org/Sanibel/sayanavideo.html

what about conchs? are they good?

Much better choice but you'll find nassarius are also a good choice.

Cheers
Steve