How to get rid of crabs!

[lyz77]

I suspect that there may be crab in my tank as I hv 2 missing goby and damsel. Is there any effective ways of catching/ killing the crab without the need to take out the LR?

Pls HELP......

[sharkfin]

go n get a syringe wif needle frm a doctor if u can, use tat to poke e crabsssss in ur tank light off wil b beta it KILLED 5 crabs using tis method

[lyz77]

Thks for the advise but I can't even locate the crabs and my livestock is missing!

[Qxnviolet]

Missing damsel? Hrmz, i doubt there are any crabs that can catch a healthy damsel. Maybe it has died and the body is hidden under or behind your rockscape?

[lyz77]

Possible too! Is there any fish that will feed or kill crab?

[flying carpet]

get a spottedhawk fish to settle your problem.

[lyz77]

Will it attack the shrimp? Where can I get it?

[Weapon_Master]

Will it attack the shrimp? Where can I get it?

Yes it may eat small fish or inverts so introducing one fish may solve one problem but cause another. This fish can also be quite aggressive.

Also it may have reef compatibility issues.

Why dont you try out the crab trap?

At least you wont fight one problem and introduce another problem that you may have to face later.

[firestream]

try to catch the crab. Put a piece of prawn meat inside a glass bottle and let the bottle stand laying beside the LR.

Caught some crab with that method ....

[d88p]

i tried that method before ....... the prawn meat dissappeared.

[lyz77]

Yes it may eat small fish or inverts so introducing one fish may solve one problem but cause another. This fish can also be quite aggressive.

Also it may have reef compatibility issues.

Why dont you try out the crab trap?

At least you wont fight one problem and introduce another problem that you may have to face later.

The problem is I can't even locate the crab, so pretty difficult to know where to put the trap!

[lyz77]

try to catch the crab. Put a piece of prawn meat inside a glass bottle and let the bottle stand laying beside the LR.

Caught some crab with that method ....

Will the prawn cause the nitrate level to raise?

[flying carpet]

Most lfs has it. Not so sure whether it will attack shrimps.

[d88p]

its even harder to find them if your tank is bigger and filled with rocks.

[lyz77]

[d88p]

you are not alone

[lyz77]

Juz caught one this morning!!!

Btw, can anyone cfm whether is it safe to put the mkt prawn in order to lure the crab? Won't it spike the increase in NO4?

[firestream]

Juz caught one this morning!!!

Btw, can anyone cfm whether is it safe to put the mkt prawn in order to lure the crab? Won't it spike the increase in NO4?

it will, similar if you have uneaten food etc in tank.

.. just make sure you remove the prawn after you catch the crab.