Please ID my Clam and this weird orage thing

[weemanpow3]

I just bought this at my LFS and Its like 4 inches all arround and I forgot what it was called. It looks puple/ Blue. The Clam opened up in five minutes when I put it in the tank. The pepermint shrimp was all over it.( Maby becasue Aptasia and Featherduster was on it). Heres the picture. The last 1 is a weird orange thing thats just been growing.

 

[blazeyreef]

the clam kinda looks like Crocea Clam (Tridacna crocea) and the last pic is maybe a small cup coral? I have no idea

 

[Ziggy953]

I agree with the clam...as for the last pic do you have a lot of it growing in your tank? Is it kind of spongey? I have what looks like it too and it is not a coral. I would say it is a type of macro algae but have not been able to get a good enough pic of it to get it identified.

 

[melosu58]

Can you get a better pic of the 2nd one?

 

[MT79]

The clam looks like a Maxima IMO. Crocea's have a more rounded shell and more prominent scutes-usually. The second is a type of algae. I'm not sure of the exact name but it grows aggressively and is hard to remove. I would get rid of it before it spreads.

 

[weemanpow3]

well its 9:00am and my Light will go on a 11:00am so I will try 2 get a better picture. This is not growing fast. its been their for 6 months. that spot is 1 inch arroung and their is another spot thats been their thats only a 1/4 of an inch and hasent grown much at all. I can either leave it, or remove it. Im just gonna wait for more peoples information.

 

[MT79]

thats been their thats only a 1/4 of an inch and hasent grown much at all

It was not a issue for me until about year and a half after I first saw it. Now it's covered one rock almost completely choking off the animals inside. It's not nice to look at and it's tough to remove with out taking out the rock and scrubbing it. Your choice
EDIT-the algae in the second pic is Lobophora Variegata.

 

[weemanpow3]

ok thanks, Im going to remove it today.