G G1GABYTES New member Mar 27, 2015 #1 They seem to be a Volcano shaped shell. Inside is a clear creature that looks like a clear hand that keeps popping in and out.
They seem to be a Volcano shaped shell. Inside is a clear creature that looks like a clear hand that keeps popping in and out.
B Betta132 New member Mar 27, 2015 #5 Yep, barnacles. Harmless filter feeders. They look sorta weird, but they won't hurt anything.
