Horseshoe crabs in my 300

[tj w]

Hey guys, i recently put two small horseshoe crabs in my tank about a month ago. Ive only seen them stirring up sand and running around the sand bed. I have had about 6 turbo snails die in this time though. Really cool crabs but not if theyre going to kill my snails. Have a few lps and sps on the live rock but never have seen them touch those. Let me know your thoughts on these guys if i need to remove them please.

 

[Reab]

I had one, actually how i got into the hobby. Not sure on why your snails are dying. Mine never did anything but dig and swim...and knock over rock work:mad: