So I guess the first question is whether the snails I have are Whelks or not.
Dentoid has this same HH from the same LR source and did not get a positive ID.
hitch-hiker-snail
My snails are not active during the day. They crawl into a hole in the rock and stay there until the MH goes off. I have only seen them on the rock and once in a while on the side of the tank. I need to get a pic of one when he is on the side of the tank to get a pic of his underside. They have been on the Ric Rock but never bothering or touching the Rics at all.
I really don't want to remove them unless I am certain that they are in fact Whelks and are an actual threat to my corals.
They cant be more of a threat to the mollusks than my mantis are. lol
btw Woodstock that is a great pic of the whelk chowing on the xenia.
Thanks Prow and Scott for the link. That was one of the articles I was referring to.
So I need Better pics from the snails underside to try to get a positive ID.
I will continue to keep a close eye on them.