Definitely not that. It's something, but not that. Gonna take a pic of it out of the water later.Kind of looks like solidified sand?. (If thats the word I'm looking for)
None...I'll post a better pic later.Looks like a conch shell.....no opening at all?
No one ever said they were concerned. Just asked if anyone knew what they were.So what are you concerned about?? They are harmless shells, that were probably in your rock. Pistols will always move small rock and shells in and out of their burrow.
have no idea if they were in the sand or not. It is a good explanation though.Hey - i was wondering what the tooth fairy did with those teeth!
The sand in your tank - were there little pieces like that in there? maybe it was in your sand when you purchased it?
I agree. Pretty cool though.Still not sure what these are, maybe a petrified shell as James said.
I think Phil's idea that maybe they were in your bag of sand sound's the most logical as to how they got there though.
+1Some sort of "petrified" shells?? Looks to be the remains of them.