live rock hitchhikers

[egrape]

I just started to see some life on my live rock, but i think at least some of it is bad.... see what you think:

baby Anenome: is it aiptasia? and if it is, is It best to get rid of it when it's small. it's about half a centimeter long now.

I initially thought this thing was a snail but it suddenly stuck out this long proboscis and I have never seen a snail with one of those..... it doesn't have the mouth a snail does either. WHAT IS IT?

I also have these weird things. I couldn't get a good picture, but it looks like someone stuck a tube into a piece of chewed gum, if that image makes any sense. probs a half inch in length. I probably have five in total. all are green, except one that is purplish which just started to stick out little wormy tentacle things a little, which was the first sign of life I got from these. what are they?

 

[egrape]

also the snail thing's shell is fuzzy looking....

 

[mr_X]

That doesn't look like aptasia to me. I would like to see a better picture. it doesn't look like an anemone at all.

The second picture is a whelk.Not sure what it eats. I have seen a few of them here and there and never saw them misbehave. Some are predatory however.

 

[egrape]

THanks for the quick reply mr x! the tanks lights are off for the night so I will try for a better photo tomorrow. the little dude is in a crevice in the rock work and usually he is more extended then he was in the photo. he definitely has a foot. he is light purpley clear, and his tentacles are pointed but not curly at all. this description is probably not so helpful. I will try for another picture tomorrow

as for the whelk, thank you! after some research I think I agree. I will probably remove him just in case.... don't want him going after any future clams or anything

any idea on the purple green tube algae things? I will try to snag a pic of those as well tomorrow