giantbicycle Posted January 20, 2004 Share Posted January 20, 2004 HI ... got a head pain .. i found out recently that my 3 feet mixed tank have lots of crabs crawing out .. Firstly i saw 3 cabs on my Blue sponges.. What should i do .. POUR TINNER hahhah 1) Any addtives out there willl kill CRABS ... or 2) what should i do.. . I dont want to use the crab chatching method as i have failed... 3) will they attack my ANEmone and sponges.. THANKS ... WAS SO angry that i wanted to pour tinner Quote Link to comment Share on other sites More sharing options...
SRC Member dradttg Posted January 20, 2004 SRC Member Share Posted January 20, 2004 I have a least 3 in my tank but they are harmless. I am leaving my alone. If you want to kill yours, you can stave them by controlling your feeding. Put in brine shrimp a little at a time to ensure that your fishes finish all of the food and none is leave cycling in your tank. Sooner or later you will see bodies of your crab. Quote Link to comment Share on other sites More sharing options...
bwilly Posted January 20, 2004 Share Posted January 20, 2004 got myself a hawkfish.. it will patrol the water for any "UFO". damn sharp eyes seow.. Quote Link to comment Share on other sites More sharing options...
Morgan Posted January 20, 2004 Share Posted January 20, 2004 If you want to kill yours, you can stave them by controlling your feeding. Put in brine shrimp a little at a time to ensure that your fishes finish all of the food and none is leave cycling in your tank. Sooner or later you will see bodies of your crab. This will not work..... Crabs are scarvengers and feed on almost anything. Too hungry may even eat your fishes. Quote Link to comment Share on other sites More sharing options...
weileong Posted January 20, 2004 Share Posted January 20, 2004 HI ... got a head pain .. i found out recently that my 3 feet mixed tank have lots of crabs crawing out .. Firstly i saw 3 cabs on my Blue sponges.. What should i do .. POUR TINNER hahhah 1) Any addtives out there willl kill CRABS ... or 2) what should i do.. . I dont want to use the crab chatching method as i have failed... 3) will they attack my ANEmone and sponges.. THANKS ... WAS SO angry that i wanted to pour tinner I tried using market prawn in tilted chicken essence bottle but failed. Tried using mysis shrimp inside and quite successful to catch the crab. Now I use mysis shrimp + cyclop-eez and even more successful, probably you might like to give it a try. I think the strong smell attracts the crab. Quote Weileong's 4ft tank Part I Weileong's 4ft tank Part II Link to comment Share on other sites More sharing options...
SRC Member arcanehacker Posted January 20, 2004 SRC Member Share Posted January 20, 2004 HI ... got a head pain .. i found out recently that my 3 feet mixed tank have lots of crabs crawing out .. Firstly i saw 3 cabs on my Blue sponges.. What should i do .. POUR TINNER hahhah 1) Any addtives out there willl kill CRABS ... or 2) what should i do.. . I dont want to use the crab chatching method as i have failed... 3) will they attack my ANEmone and sponges.. THANKS ... WAS SO angry that i wanted to pour tinner talk about sponges.. I think most crabs come from blue sponges... Quote Why do we use "My 2 cents worth" when 1 cents are not legal tender in Singapore anymore? Shouldn't it be 5 cents worth? "Its easier to blame the 'mantis' or crabs in the tank for missing & dead livestocks.." http://arcanehacker.blogspot.com/ Link to comment Share on other sites More sharing options...
SRC Member kee Posted January 20, 2004 SRC Member Share Posted January 20, 2004 if u can starve the crab.. i they feed on anything.. fish shit also eat.. tink they will die?? no... they might attack ur fish.. very bad experience.. Quote Link to comment Share on other sites More sharing options...
giantbicycle Posted January 20, 2004 Author Share Posted January 20, 2004 Hun..then how.... Quote Link to comment Share on other sites More sharing options...
veeresh Posted January 20, 2004 Share Posted January 20, 2004 Hi Bro My suggestion is to leave the crab alone. They are a very good cleaners furthermore there are harmless (unless the crabs are huge that can destory your coral). V Quote Link to comment Share on other sites More sharing options...
giantbicycle Posted January 20, 2004 Author Share Posted January 20, 2004 ARE you sure they wont bite my anemone or my sponges ..... Quote Link to comment Share on other sites More sharing options...
weileong Posted January 20, 2004 Share Posted January 20, 2004 if you're worried then remove them Else leave them alone. For me I want to try to remove every single one of them cos I worried they will attack my fishes. Quote Weileong's 4ft tank Part I Weileong's 4ft tank Part II Link to comment Share on other sites More sharing options...
SRC Member boxfish Posted January 20, 2004 SRC Member Share Posted January 20, 2004 there is another way but not very efficient though see which liverock the crab hide under/in and pick the liverock out then you can take your own sweet time to dig or poke that !~!@#$ to death but i'm gona try the bottle + mysis as well Quote Link to comment Share on other sites More sharing options...
weileong Posted January 20, 2004 Share Posted January 20, 2004 I also tried your method of poke but I do it with the LR in the tank. End up the crab escape unhurt lol. Quote Weileong's 4ft tank Part I Weileong's 4ft tank Part II Link to comment Share on other sites More sharing options...
SRC Member arcanehacker Posted January 21, 2004 SRC Member Share Posted January 21, 2004 ARE you sure they wont bite my anemone or my sponges ..... They won't bite sponges, they just live in it.. Quote Why do we use "My 2 cents worth" when 1 cents are not legal tender in Singapore anymore? Shouldn't it be 5 cents worth? "Its easier to blame the 'mantis' or crabs in the tank for missing & dead livestocks.." http://arcanehacker.blogspot.com/ Link to comment Share on other sites More sharing options...
SRC Member arcanehacker Posted January 21, 2004 SRC Member Share Posted January 21, 2004 I have a least 3 in my tank but they are harmless. I am leaving my alone. If you want to kill yours, you can stave them by controlling your feeding. Put in brine shrimp a little at a time to ensure that your fishes finish all of the food and none is leave cycling in your tank. Sooner or later you will see bodies of your crab. harmless only when they are still small therefore appetite smaller. There is no way to starve a crab.. they can live in a bunch of LRs in a LFS, what makes you think they are starving? ..If you notice, they pick on live rocks for food..at least for small ones. Quote Why do we use "My 2 cents worth" when 1 cents are not legal tender in Singapore anymore? Shouldn't it be 5 cents worth? "Its easier to blame the 'mantis' or crabs in the tank for missing & dead livestocks.." http://arcanehacker.blogspot.com/ Link to comment Share on other sites More sharing options...
giantbicycle Posted January 21, 2004 Author Share Posted January 21, 2004 So you mean its not a problem if i leave them alone.. By the way thanks for thoese whoo answered Quote Link to comment Share on other sites More sharing options...
SRC Member arcanehacker Posted January 21, 2004 SRC Member Share Posted January 21, 2004 So you mean its not a problem if i leave them alone.. By the way thanks for thoese whoo answered It might not be a problem if they are small. but when they get bigger, they might disturb of eat your LSs. Quote Why do we use "My 2 cents worth" when 1 cents are not legal tender in Singapore anymore? Shouldn't it be 5 cents worth? "Its easier to blame the 'mantis' or crabs in the tank for missing & dead livestocks.." http://arcanehacker.blogspot.com/ Link to comment Share on other sites More sharing options...
weileong Posted January 21, 2004 Share Posted January 21, 2004 talking abt crabs, I set 3 traps last night and caught 2 this morning. 1 small abt 1cm and the other abt 2.5cm. Still see some crabs in tank but since CNY so crab termination will resume only after the weekend. Give them a few more days to live. Quote Weileong's 4ft tank Part I Weileong's 4ft tank Part II Link to comment Share on other sites More sharing options...
giantbicycle Posted January 21, 2004 Author Share Posted January 21, 2004 HA ha pupic holiday for crab chatching Quote Link to comment Share on other sites More sharing options...
SRC Member shiok Posted January 21, 2004 SRC Member Share Posted January 21, 2004 i have abt 10 crabs when i start off my tank 3 mths ago but all of them slowly dies off after creating nice holes in my live rock Quote Link to comment Share on other sites More sharing options...
Achilles Tang Posted January 21, 2004 Share Posted January 21, 2004 GiantBicycle... You have to learn how to ID your crabs first before deciding whether to keep them or get rid of them. There are many harmless commensual crabs which live on corals and do not harm anything. These are mainly filter feeders and perhaps keep the coral clean of detritus and do serve the function of protecting the coral from predators. The only crabs that need to be killed are the hairy ones... with white eyes... IME... these are the ones that will damage corals. I hardly hear of any crab that will destroy sponges... I have never seen any crabs that hitchhike with sponges sold in the trade. Rock crabs... some people hate them... and will get rid of them. When they get too big, they may be a threat to small fishes like firefishes. Quote Link to comment Share on other sites More sharing options...
giantbicycle Posted January 22, 2004 Author Share Posted January 22, 2004 THANKS : AT and sorry for the mistake i had done.. Will learn from my mistake the next time By the way, As what i have obversed , the crabs in my tank do have Very long pinsers. And i think that the eyes are not white in colour as what You have Mentioned... THe crab is measured about 5 cm in length. and i think it is brown in colour .AS what i have seen the last time, i think it is quite HAriy on its pinsers.. HOPE THIS HELPS ... THANKS AT and thoese who replied Quote Link to comment Share on other sites More sharing options...
SRC Member Yellowbelly Posted January 26, 2004 SRC Member Share Posted January 26, 2004 My fire goby have went missing same for my flame gobys which I have not seen for a few days already ...I am assuming that there is some crabs left ...so I did a chicken essence crab bait with the rubber band cross as recommended with a small piece of prawn meat inside. This morning when I went to collect my prize...there was none and my prawn meat is gone ? Smart crab or is it my fire shrimp manage to get in ? Quote Link to comment Share on other sites More sharing options...
SRC Member arcanehacker Posted January 26, 2004 SRC Member Share Posted January 26, 2004 I hardly hear of any crab that will destroy sponges... I have never seen any crabs that hitchhike with sponges sold in the trade. AH.. I bought my first blue sponge and realised one small crab in it... left it alone since its small and only one... then many weeks later I went to buy another one.. viola..another one in my tank.. one keeps hiding in the bigger sponge.. As there are many holes on big sponges, there are many places it can hide in. Whats worst is that we can't just take the sponge out to catch the crab as sponges cannot be in contact with air.. if you never heard of any such incident, then now you have.. ..Twice in a row.. I might need to buy 4D or toto already.. Quote Why do we use "My 2 cents worth" when 1 cents are not legal tender in Singapore anymore? Shouldn't it be 5 cents worth? "Its easier to blame the 'mantis' or crabs in the tank for missing & dead livestocks.." http://arcanehacker.blogspot.com/ Link to comment Share on other sites More sharing options...
giantbicycle Posted January 26, 2004 Author Share Posted January 26, 2004 hahha 4D Quote Link to comment Share on other sites More sharing options...
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