Any fish can eat pest crabs and not harm shrimps?

[bryanong]

Can any 1 recommend me any fish that can kill pest crabs and not harm shrimps other than triggers? I have spotted a couple of crabs and I am afraid that they might grow bigger and spawn. Thanks a lot.

[alex826768]

sixline......

[searching4dan]

IMO, juz get those crab out by hand?

how big are they??

wat i did was i recce the location of the crabs for a few days

confirm its hiding place

remove the whole chunk of LR with it inside

then play with it slowly.. forcing it out with a satay stick

juz my 2 cents

[bryanong]

IMO, juz get those crab out by hand?

how big are they??

wat i did was i recce the location of the crabs for a few days

confirm its hiding place

remove the whole chunk of LR with it inside

then play with it slowly.. forcing it out with a satay stick

juz my 2 cents

They are located at the middle rock in the stack of rocks and so it's very hard to get it out. Somemore my tank is 2.5 ft in height and it's very troublesome to reach it. Sigh...

[big_ben102000]

a trigger ? may help. but it will wack your shrimps as well.. if u have any

[searching4dan]

sixline liao lor..

but hyper aggressive..

try ur luck??

[big_ben102000]

sixline liao lor..

but hyper aggressive..

try ur luck??

bro sixline will eat crab meh ? haha their mouths are so small.. how they are gonna peck through the shell ? lolz.. unless the crab is very tiny lar ..

[jacobus]

sixlines really work ... dunno how they do it .. but they do . haha ... after additon of sixlines .. my SB always have claws lying around .. but after a few months ready .. no more claws .. mebbe crabs in my tank extinct ready ..

[big_ben102000]

powerful little fish. i got one too .. bought it because it was quite colourful

[thioeh]

Bird wrasses and moon wrasses. Will not harm shrimp when it is small but will grow big very fast and it will be harmful to your shrimp. Have both wrasses in my softies tank and personal saw them hunting down the crab on my newly brought zoos, both are also good for hunting down worm.

[scs88]

clown trigger is good!!

i haf one

tt is v cute

doesnt chase fishes

and attacks all crabs

but it ate one of my cleaner shrimp in less than 10 s

tt was when i released 2 cleaner inside

but the other one was left alone

for almsot 6 mths liao