ID things growing on my spiny star astrea snail

[Sidius]

Hey! I don't mean to start another boring thread about IDing something but I'm a newbie and want to know if I should get rid of this snail or not...

It has 3 different things..

Number 1 - possibly some kind of red sponge?

Number 2 - honeycomb looking thing that when zoomed in almost seems to have polyps

Number 3 - almost looks like another snail that has attached to this snail

If any of these are invasive or a pest, please let me know. I'd rather sacrifice one snail than lose a bunch or deal with pestshttps://uploads.tapatalk-cdn.com/20181121/403b5b39a41027d18db6eaae8de350fd.jpghttps://uploads.tapatalk-cdn.com/20181121/2d5076da65008585d2df492ade3b27c1.jpghttps://uploads.tapatalk-cdn.com/20181121/0a97852512b5a5360213c3a909a865da.jpg

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[DKoKoMan]

1st - looks to be coralline algae (calcification on shell)
2nd - could just be a deformity on the shell (erosion etc.)
3rd - I’m not too sure as I can’t really make it out.

[Sidius]

Here's a better pic of the side profile of the honeycomb looking growth.. it's hard to make out in a pic but when I zoom in with my camera it seems to have round polyps or something that looks like tiny zoas..https://uploads.tapatalk-cdn.com/20181121/8c629af59a124cf04662b9d232460dc9.jpg

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[Sidius]

The third pic in the first post you can see the long black thing extending.. that's the snail looking growth that is fully extended, not the astrea snail itself

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[Frogger]

I have had pocillopora grow on a snail before.

[smokinreefer]

1) FORAMINIFERANS; harmless

2) hard coral of some sort; cool bonus if it's alive! I'd pry it off from the bottom and glue it onto a frag plug.

3) hard to tell from the pic but looks like the snail is taking his sock off. ;P sorry can't help on this one. Lol

[Sidius]

Just wanted to help clarify the third picture in my original post. That is not the astrea snail that you are looking at in the picture. That's the growth/snail like creature attached to the spiny star astrea and I'm zoomed in really close so you can see that whatever it is, it's extending that black tongue like appendage. A friend of mine suggested it could be a mollusk of some kind.

Here's a picture from further away so it's easier to see what I'm talking about...https://uploads.tapatalk-cdn.com/20181121/6a371ebbe772d3d1ca9b5c4321a266a1.jpg

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[smokinreefer]

Dude. You got one messed up snail.
Reminds me of the dude from total recall.

Looks like a permanently attached mini snail.