Horseshoe crab worries

[ScienceRulez]

Roughly 2.5 weeks ago my horseshoe crab (I think) molted. Since then I haven't seen any sign of it The reason I think it molted is that I found the empty shell and it was really empty. The few remnants of the legs were hollow and the shell was completely intact. So I suspect it molted.

Assuming it did molt, when might I see it again? Before this it was pretty active both above and below the substrate. Now there's nothing. I'm starting to get worried.

Would it be a good idea to dig around the tank and find it or should I just let it be and come out on its own assuming it's alive?

 

[Craig 63]

Personally I wouldn't have a dig around just in case you hurt him/her I believe crabs are the same as shrimps that when they moult they hide until the new shell hardens up to save predation.

 

[ScienceRulez]

Ok, I'll wait and see what happens.

 

[Sk8r]

If you haven't seen an ammonia spike it's still likeliest ok but hiding. Aren't they nocturnal, to a certain extent?

 

[ScienceRulez]

I've been testing the ammonia since adding fish and there has been no increase in ammonia, the Salivert test is showing 0.0 ppm.

Yes, they are nocturnal but before the molt I saw it every couple weeks when I came in early on Mondays to do extra work that I can't get done the rest of the week because of time constraints.