Cool mantis. I have a Strawberry crab that does the same thing with using rocks/shells in front of his favorite caves/holes as doors.
:clap:I got it out... I had to freshwater dip it then break the rock in two with a hammer but I got it out.. lol! Well now I can safely keep fish, but when I get back from holidays in 3 weeks or soI ordered all of the API test kits pretty much (Reef kit and SW kit) and they will be here tomorrow so I can keep a close eye on the tank.
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