he is still pretty small. he has grown since i first noticed him, but like i said, still tiny. i have seen no aggression towards anything. usually when i can find him, he's hiding in a dugout or a hole in one of my rocks. about the rock being from florida, i really doubt it. not for sure, but being here in northern japan i don't see it being probable to ship rock in from so far away. i thought that i had seen that conchs are normally a problem. is that true? or are they only a problem because of how big they get?