Catching the Crabs?

[SoylentGrundy]

Hello all!
I recently pickup up 2 emerald crabs to help keep the algae on my LR groomed. And go figure, they are too good at it. They're mowing down too much algae now. I've even supplemented with Dried Algae strips but they still clean the rock too well. Any tips for catching one of these boogers to relocate him to another tank? Once the net hits the water they pull into a crevice in the LR and disappear. Was wondering if anyone had an idea for a trap so I can "catch the crabs".

[reefrunner69]

Use a straight sided glass or jar and bait the bottom, lean the lid onto the rock it likes to hang out in.

[jamal-188]

Or, you can use a sharp pointy stick like I did to get my evil rock crabs that were eating my snails and zoo's

[Mermaid]

maybe try just yanking out the rock it hides in. i've had luck catching them this way. good luck!
mermaid

[SoylentGrundy]

thanx for the ideas!

[f-dean]

mine gets excited when if feed mantis shrimp frozen, it is how i lured my lobster out to net.