Red spiky thing, that closes when touched

pinocchio

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I recently noticed this red spiky ball that seems to come out of a crevice during the day. If touched it closes/retracts. It moves extremely slow. It’s a little bigger than a pea at the moment
IMG_1132.jpeg
 

When to mix up fish meal: When was the last time you tried a different brand of food for your reef?

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  • I occasionally change the food that I feed to the tank.

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