Please help identify black with white spiky dot thing

[Beezwax404]

I just noticed these little black with spiky white dot things crawling on my LR in my 8 month old reef tank. They have two little antenna things like a snail does and they are king spiky looking. Please help...are they bad? There are probably 10 ot 12 of them that i can see. But the onea i pictured are the biggest

 

[Beezwax404]

I just noticed these little black with spiky white dot things crawling on my LR in my 8 month old reef tank. They have two little antenna things like a snail does and they are king spiky looking. Please help...are they bad? There are probably 10 ot 12 of them that i can see. But the onea i pictured are the biggest

I edited this to add a better pic. this is about 1/4 the size of a pencil eraser

 

[Beezwax404]

I uploaded more photos. Sorry im not sure how to use the forum very well

 

[Ratvan]

Looks like it could be a Nudibranch? Do you have any corals that match the colours of these guys?

 

[eschaton]

IMHO it looks like some sort of cowrie. They often look spiky like that when the mantle is over the shell.

Could be good, could be bad. Most cowries aren't 100% reef safe though.

 

[Beezwax404]

I only have a green candy cane, a purple and green hammer and a purple torch with orange and green zoanthids....They just showed up and the last thing i put in my tank was the zoanthids about 2 months ago and they are covered in aptasia now

 

[El_Guapo13]

#reefsquad @KJ

 

[KJ]

Look like Nudibranch. Can you catch one and put it in a clean container feel with water so I can give a better ID?

 

[Losthawk69]

if you cant find out and can live happy with out it remove ever one you see before the bigger issue happens

 

[inletfish]

they look like this guys cousin. if so, it says theyre grazers

 

[Beezwax404]

it does look exactly like the one in the picture except it has white tips. Ill pull one out tonight and take a picture. I really appreciate this help. They just appeared out of nowhere. I appreciate everyones help

 

[Beezwax404]

So i took one out and photographed it if anyone has any idea @KJ

 

[Beezwax404]

More

 

[KJ]

So i took one out and photographed it if anyone has any idea @KJ

Aeolid Nudibranch remove them.

 

[Beezwax404]

Thanks KJ. Working on it now