Haven't seen Horseshoe crab in 5-7 days

[AdamR0331]

picked up a Horse shoe crab last week and have not since him in past 4-5 days ?? is he dead or stuck what is my best way to find him without making a mess

 

[blaxsun]

Stuck or buried would be my guess.

 

[AdamR0331]

Checked for a few minutes yesterday no luck , looks like going to have to remove all my rocks and deep dig for him , might consider restarting my tank since I started fighting bryopsis