Growth on hermit crab shell?

[Rangachick]

Hi there,

Just wondering if anyone has seen anything like this before and able to tell me what it is? It has just appeared on our hermit crab - nothing new introduced to the tank. Any thoughts appreciated. Other tank inhabitants include:
Nassarius snail x2
Trochus snail x2
Strombus snail x2
Hermit crabs x3

Clownfish x2
Firefish x1
Blue cleaner wrasse x1
Damselfish x1
Zebra-striped goby x1
Blue-Green chromis x2

Elegance Coral x1

 

[Nemo1]

Looks like a limpet to me

 

[Rangachick]

Looks like a limpet to me

Thanks - I'll do some research. The tank is about 6 months old and nothing new has been added for a couple of months. We have certainly never added limpets to the aquarium, so if that's what it is it must have come in on somehting at some point.

 

[NightmareReef]

Limpet for sure. Think of him as a tiny member of your clean up crew

 

[Nemo1]

From what I know they are good anyway, I’ve heard something about a caution with sps but not 100% sure on that
If you had live rock they could’ve came in on that