Gorilla crab removal

[Everclear]

Does anyone have a surefire method of removing gorilla crabs from an aquarium?

So, long story short, after 9 months I have discovered 2 gorilla crabs hiding out in my live rock. They have each claimed their own rock which also happen to be the 2 largest rocks in the aquarium. I would prefer to not remove the rocks from the tank but I will as a last resort. Any help is greatly appreciated, thank you.

 

[fishywishy]

Traps and bamboo skewers have worked for me.

For the traps, you can place a small shot glass or similar container in the tank and create a small ramp leading into the glass, baited with food to attract the target. Alternatively, you can cut the top off a plastic bottle, invert it to create a funnel, secure it in place, and add food inside to lure the crab into the trap. One thing to mention is that IME traps don’t work when you have a cleaner shrimp because they go for the bait.

For the bamboo skewers, just wait until night, use a red light, and use the skewer to get them.

If all else fails just remove a rock that you know it’s in and wait until it comes out.

 

[PR_nano]

Bottle trap with a piece of raw shrimp worked for me.