Those crab came with LR - Good or Bad ?

[skthk]

Those small tiny crab that came along with LR are harmful or harmless / good or bad ?

Thanks

[DeepBlue]

they will grow to become big crabs and you'll see your anthias, gobies, blennies.....going missing

[ryz]

I know..... AHHH.... I have lotsa them in my tank... tried using the brands bottle trick, cannot work leh.. next day only see many pods in there eating, no crabs... how??

[giantbicycle]

Me too.... RYZ they are back again?? I dont know why like got season like that

[nutx]

they will grow to become big crabs and you'll see your anthias, gobies, blennies.....going missing

I just bought some goby from jaguar shop...and he said crabs wont disturb them!

[reeflobang]

I just bought some goby from jaguar shop...and he said crabs wont disturb them!

He is right in saying the crabs will not disturb them. Actually will give them rest instead... eternal rest....

[bubble_gum]

hmm try this to remove dem. get the tinyest octopus u can find.before placeing it in ur tank, remove all clams shrimps etc.confirm no more crabs.

[eaquarist]

crabs are all opprtunistic feeders and if possible, will grow big and become problems, just my thoughts but i suppose so will the octopus....if you are not keeping ornamental shrimps, try a hawkfish. They are relatively reef safe, natural predators of small crustaceans and once done with the crabs, don't really grow big and should be easier to remove since they have no swim bladders and sink to the bottom all the time.

Just my two cents worth.

[nutx]

crabs are all opprtunistic feeders and if possible, will grow big and become problems, just my thoughts but i suppose so will the octopus....if you are not keeping ornamental shrimps, try a hawkfish. They are relatively reef safe, natural predators of small crustaceans and once done with the crabs, don't really grow big and should be easier to remove since they have no swim bladders and sink to the bottom all the time.

Just my two cents worth. 

I've this thought of getting a hawk.....Shrimp can be removed, but all my snails inside will be difficult to remove....so, now I've a permament trap inside....hopefully can remove all the crab eventually.

[maKo]

I know..... AHHH.... I have lotsa them in my tank... tried using the brands bottle trick, cannot work leh.. next day only see many pods in there eating, no crabs... how??

I used the brands bottle trap as recommended in another thread. Works like magic leh... I caught 8 crabs from my new LR in just one night. Maybe these newbie crabs not so smart yet. It was advised that the trap should be placed near the crabs' hangout, at a non-threatening angle as well.

The difficult part was having to throw them into the toilet bowl and watch them die by ammonia poisoning..

[Jimaroon]

How about putting the LR with hitchhiking crabs into a pail of fresh water? Is it advisable? In this case, all crabs will die off.

[Kalib]

The other lifeforms(both harmful and harmless) will die as well if the LR is dipped into freshwater.

[Vincenttan]

One of my friend teach me to put the LR in high concentrated salt water 1.030 - 1.035. It work for him, all the crab crawl out

[Virus]

My crabs just killed my mandarin!!!!! #@%&!

KILL ALL CRABS!!!