Anyone know what this is?

[smcnally]

I have 2 in my tank, and they are very slow moving. I know I've seen them before, but can't remember what they are called. Are they good or bad? If you don't see it, it is just about dead center on the bi-valve above the dark purple spot of coraline.

 

[Chris A.]

That's a limpet

 

[Moe_K]

Chiton?
If so, they're harmless.

 

[smcnally]

Damn! I knew I knew what it was, but I couldn't get the word out. Good or bad though?

 

[Mr. Slippery]

same as here. They're fine. http://216.235.242.50/forums/showthread.php?t=10155

 

[smcnally]

I have Chitons too. They are a different shape. In fact, here's a picture of the one in my tank.

 

[Moe_K]

Limpet. That's it. Good work.

 

[Moe_K]

http://www.woodbridge.tased.edu.au/mdc/Species Register/limpets.htm

 

[willray]

limpets,good!

 

[_Eric_]

Keyhole limpit.

limpets,good!

Some are good some are bad. I really dont have much experience with limpits but I can say that the bad ones like to eat SPS.

 

[NateHanson]

According to Calfo on WetWebMedia, the non-colored species of keyhole limpets are herbivorous and good reef citizens. I assume that by "non-colored" he means white.

Nate