What is this?

[mlpbarrett]

My first found life growing on my rock.. it has these black feelers that will come out from underneath it and feel around before it crawls up anywhere. what is it?

 

[Fluff]

Looks like a limpet. Mainly an algae eater but should be watched if you have corals in the tank.

 

[Ziggy953]

I agree. I have tons of them in my tank.

Fluff I have yet to see any issues concerning my corals and these guys.

 

[Fluff]

I never had problems with my keyhole limpets either but certain species (fleshy limpets come to mind), may eat coral flesh. This one looks pretty benign but doesn't hurt to be watchful.

 

[Ziggy953]

I totally agree! You never know when something in the tank may turn against your corals.