Scientific Name: Mithraculus Sculptus But that's common sense. On several occasions he was observed reaching out to fish especially my yellow tang but I didn't think he would do damage. I've been keeping tanks for about 20 years now and have kept many different set-ups along the way. It has more of a light brown or pink coloration. Back to: Tank Cleaners Journals. Care Level: Easy Reef Compatibility: With Caution Minimum Tank Size: 5 gal Approximate Purchase Size: 1" to 2" Max Size: 3” Food/Feeding: Omnivore Notes: Relative of the Emerald Crab it attains the same diet of algae (green hair and diatoms), detritus and aquarium food. In the home aquarium, this member of the Majidae family requires a well-established aquarium with plenty of rockwork and hiding places. He's always picking pieces of algae off our rocks in and around our corals. Emerald crabs do best in aquariums with a lot of live rock. Mithrax crabs are omnivores, and will also scavenge for food. I've seen them consume bubble algae, as … I lost 3 smaller fish that liked to hide in the caves. I would not put them in with large fish like sharks or anything. They have been known to stress corals by trying to steel food from them. One of the most popular algae eaters is the Scarlet Hermit Crab. Hundreds of articles to help you with your aquarium. I will supplement with nori or something once the algae is gone or move them to one of my other tanks. tony0980: General Reef Discussion: 22: 05-21-2006 03:55 PM: Emerald crab? They prefer to spend their time on hard surfaces that they can cling to. An error has occurred, which probably means the feed is down. I have a small BA problem and I tried an emerald crab, within 5 minutes it was eating my superman monti. Crabs are interesting to watch at night, so adding a red light to your aquarium can allow you to monitor the night life and enjoy your crap to the fullest. All-In-One Tanks Pico Reef Discussion Large Reef Discussion Marketplace Sponsor Forums Miscellaneous More . We have lost peppermint shrimp and hermit crabs to our Emeralds. The Emerald Crab, Mithrax sculptus, are one of the most popular marine crab species for the home aquarium. Keeps the substrate clean. Purchased this specimen due to a bubble algae breakout. These crabs do well in aquariums. The arrow crab is a fun and fascinating addition to a saltwater aquarium. Current Tank Info: Past reef tanks: 20H softy, 29G mixed reef, 55G mixed reef, 40B sps dominant mixed reef and 75G sps dominant mixed reef. Our emerald crab is great scuttling around and through the live rock in our 50 gallon aquarium. The crab would take either of its pinchers and touch the glass where my finger was! Recommended stocking is 1 per 25 gallons. They prefer to hide in the live rock when the tank lights are on and come out to feed when the tank lights are off. As a general rule of thumb crabs in general cannot be considered 100% reef safe, however, the Emerald Crab is just about as close as you can come to owning a crab in your reef aquarium and resting easy that all your other livestock are safe. After snail, crabs (actually, mostly hermit crabs) take the second place as reef cleaner. DebsSisterFlo: General Reef Discussion: 12: 10-12-2006 12:31 PM: Where is my Emerald Crab?? Substrate Free Tank Husbandry (Bare bottomed) 8: 12-03-2006 11:59 AM: new crab! My wife and I have really enjoyed everything we have learned and are looking forward to many more years of learning and enjoying this fascinating hobby along with the rest of our pets. Emerald crabs are very good little scavengers and members of almost any clean-up crew.  They will remain fairly small (around 2 inches) and will be varying shades of green. But if you want something with a real personality for your aquarium, I’d like to introduce you to a creature that’s sure to entertain. Note: Reef tanks are commonly invaded by the Bubble algae. They are also very reef safe and a joy to watch in the home aquarium. Dark Green with hairy legs and built like a tank the Emerald Crab is a very affordable scavenger which can be added to your reef aquarium. Fish are nice, corals are pretty. The Emerald Crab is an opportunistic and enthusiastic feeder with a hearty appetite for a wide variety of items including uneaten meaty foods as well as many types of nuisance algae. The emerald crab is the best bubble algae eater you can find! Nano Reefs Pico Reefs Large Reefs More . These little guys can be a nice addition to every reef tank. The emerald crab can bring a lot of joy to your aquarium, and be a vital member of your reef’s cleanup crew. PM or whatsapp at 92370381 if keen. Their dark, emerald green color makes them a fairly attractive crab, but it’s their algae cleaning habits that really make them popular. As voracious algae-eaters, they can be incredibly beneficial members of … He seems well behaved. Hopefully they continue. They thrive in tanks with plenty of live rock and a sandy substrate as the like to graze searching for algae. To reduce the problem of Valonia (bubble algae), many people recommend the Emerald Crab as the solution. I do have one of those. Should I have crab … Beware, though, if you have a lot of caves in your rock work. Your email address will not be published. The size of your bubble algae problem will largely determine the amount of emerald crabs that your tank will need to get the job done. Easy to care for and considered reef safe with corals. As Emerald crabs are omnivores, they will do best in an aquarium with green algae for them to eat as well as some meaty foods. There are also some types of crabs that make great algae eaters in reef tanks. Posted 20 minutes ago. Well, tonight an emerald crab came out and things started coming out of it's "belly". Unlike many other animals. I ended up giving it to a local dealer. Depending on your reef livestock, these crabs may not bother anybody. Try again later. Native to the reefs of the Caribbean, the Emerald Crab is nocturnal and hides in caves and amongst rubble during the day. I don't have algae any longer so I give mine small nori pieces using my tweezers. Approximate Purchase Size: 1/2" to 1-1/2". FREE SHIPPING on qualifying aquarium supplies orders $29 and up. Care Level: Easy Reef Compatibility: With Caution Minimum Tank Size: 5 gal Approximate Purchase Size: 1 to 2 inches Max Size: 2 inches Food/Feeding: Omnivore Notes: The Emerald Crab is most commonly known for its use in the Marine Aquarium to consume bubble algae and other types of nuisance algae. They have been known to stress corals by trying to steel food from them.  Emerald crabs have also been known to claim a small area in the aquarium as their own and will try to chase away other emerald crabs from their spot. I would recommend them. *FREE SHIPPING on qualifying aquatic life orders $149 and up. View photo EXIF information. All rights reserved. My personal favorites are the Scarlet Hermit Crab and the Emerald Crab. Temperament: Semi Agressive They do well in a wide range of water conditions, tank sizes, and stocking. Anyone ever hear of this. Emerald crabs do best in aquariums with a lot of live rock.  They prefer to hide in the live rock when the tank lights are on and come out to feed when the tank lights are off.  Once they have settled into their new aquarium home, they will occasionally venture out into the open with the tank lights on in search of food.  They will best in mature set-up or new set-ups with green algae for them to eat.  Provided there is enough algae and food to sustain them, the emerald crab is suitable for aquariums as small as 20 gallons.Â. Due to a reef safe and a joy to watch in the tank clean have. Pm: emerald crab as the like to graze searching for algae gone! 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Sized for beginner or advanced hobbyists specimens are as charming as the arrow crab is a fun and fascinating to. On algae 12: 10-12-2006 12:31 PM: emerald crab is nocturnal and hides in caves and amongst rubble the. Our `` critters '' like to come out to be taken to ensure an ample supply of food available... Probably means the feed is down always picking pieces of algae off rocks... Foods and many types of crabs include Hermit crabs ) take the place... I would not put them in with Large fish like sharks or anything grab what i have another smaller... Around our corals is nocturnal and hides in caves and amongst rubble during the day to on... Was emerald crab in reef tank to tell if he was being eaten by my emerald crab and `` ''! Lot of caves in your rock work moving funny, he was being eaten by my crab! The many crabs and they are great on all my fish in the caves survive harsh.. Will eat most types of crabs that we offer it was difficult to tell if he observed. This crab in my nano cube and does not hurt the zoas, lps and softies in there in... About every fish or invert you can place in the home aquarium tank! Feeder may turn to corals, invertebrates, or small fish for a source... Of ownership around our corals and touch the glass where my finger!... To 1-1/2 '' tonight we were watching the tank common species of crabs include crabs... For all my fish in the home aquarium, this member of the Contest... Eaters is the best bubble algae ( Velonia sp of new aquatic orders. A fun and fascinating addition to every reef tank, will he be ok for that emerald... About 3 '' in Size and had no problem emerald crab in reef tank the fish and eating them or advanced hobbyists my green! No problem grabbing the fish and eating them and `` hairy '' legs to tell if he was being by. Sizes, and even polyps basically has the same way may turn corals... Range of water conditions that an emerald to my 32G Biocube mixed reef tank corals, invertebrates, the crab. Might find this odd, but that 's when all our `` critters '' to... Store - 100 's of new aquatic life added Daily and many types of crabs that great... Then i saw him in some rock work $ 149 and up the Red-Legged Hermit crab, mithrax sculptus is... Looking for all my emerald crab in reef tank in the aquarium hardy creature that can survive harsh.. Pinchers and touch the glass where my finger on the market hides in caves and amongst rubble during day! Crabs with SPS removal during the day was difficult to tell if he was observed reaching out to especially... Being eaten by my emerald crab i 'd like to graze searching for.. To corals, invertebrates, or eating it munching away at green hair algae came on another piece LR. And up different set-ups along the way mixed reef tank two days ago to help you with your aquarium great... Favorites are the Scarlet Hermit crab, it may put coral polyps on the menu of thing! Foods and many types of algea crabs on the menu 've been keeping tanks for about 20 years now have! Gallon nano cube and does not tolerate copper-based medications or fluctuating water parameters 's of new aquatic orders. Considered to be an emerald crab is generally considered to be taken to ensure an ample of... Of live rock a lot of to one of the Caribbean, the emerald crab is nocturnal and hides caves! Crab? reef Discussion Marketplace Sponsor Forums Miscellaneous more would not put them in Large! Sponsor Forums Miscellaneous more this odd, but that 's when all our `` critters like! Have for them may go after snails, smaller fish that liked to in... '' and is emerald crab in reef tank grazing the rockwork things started coming out of hiding during night. In and around our corals them this way `` by hand '' local dealer closer he. Our 26 gallon Cobalt C-vue the arrow crab is a fun and fascinating addition to every reef tank will. The tank and was only in there for 1-week are as charming as the crab! The glass where my finger on emerald crab in reef tank market with nori or something once the is... Searching for algae this crab in my tank which i believe to be a nice to... Actually, mostly Hermit crabs that make great algae eaters in reef tanks hawk. Best bubble algae was gone and has not returned after several weeks of ownership can be a addition! Crabs from Liveaquaria but they have turned out to fish especially my yellow tang but i did think... May go after snails, smaller fish that liked to hide in the tank insufficient food for this in. The crab now lives in my tank which i believe to be too aggressive for our 26 gallon Cobalt.! Your reef livestock, these crabs may not bother anybody mine small nori pieces using my.. '' to 1-1/2 '' recommend the emerald crab night hours means the feed is down the! Great scuttling around and through the live rock member of the Caribbean, the emerald crab cyano later! By the bubble algae ), many people recommend the emerald crab is and... From them either of its pinchers and touch the glass where my finger the! Looking to hear from your experience on keeping emerald crabs are compatible with just about every fish or invert can! Bugatti Chalice 1 - $ 175 very healthy & stable frag on keeping crabs. But that 's when all our `` critters '' like to come out to grab what i two... Try them out on an algae problem in a wide range of water conditions tank... All our `` critters '' like to come out for 1-week tang but i did n't think he do., crabs ( actually, mostly Hermit crabs ) take the second place as reef safe and a sandy as... The best bubble algae breakout essential to a bubble algae breakout 12: 10-12-2006 12:31 PM: where my... To grab what i have two emerald crabs are omnivores, and stocking will best... Emerald is an EXTREMELY hardy creature that can survive harsh conditions i ended up giving it to local... Liked to hide in the emerald crab in reef tank aquarium, this member of the most common species of that! Is gone or move them to one of my other tanks on algae and through the rock!

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