Generally, as long as you food sources (waste, algae,and food from an established tank), they should not bother any fish or inverts in the tank. I feed our Sally light foot crab the same way. However, when well fed, most Emerald Crabs are very tolerant of their tankmates and highly compatible in reef environments. If they are starving, they may go after snails, smaller fish, and even polyps. Excludes Frozen Foods. Reef Safe: Yes I had a lot of un-eaten pellets on the substrate prior to purchasing the crab and over night this crab, with help of my cleaner shrimp, had it all cleaned up. Well, tonight an emerald crab came out and things started coming out of it's "belly". Find out why. Scientific Name: Mithraculus Sculptus tony0980: General Reef Discussion: 22: 05-21-2006 03:55 PM: Emerald crab? Their dark, emerald green color makes them a fairly attractive crab, but it’s their algae cleaning habits that really make them popular. The hawk was new to the tank and was only in there for 1-week. Should I have crab … Native to the reefs of the Caribbean, the Emerald Crab is nocturnal and hides in caves and amongst rubble during the day. 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. Emerald Crabs are popular because they help keep the tank clean and have been reported to eat bubble algae (Velonia sp. Tonight we were watching the tank after the lights went out. So I woke up today and was looking for all my fish in the tank and noticed my blue hippo missing. They are also known as the Red-Legged Hermit Crab, named for their red legs. Recommended stocking is 1 per 25 gallons. They prefer to spend their time on hard surfaces that they can cling to. With its exotic look and graceful-yet-gawky movements, few aquarium specimens are as charming as the arrow crab. PM or whatsapp at 92370381 if keen. 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. As voracious algae-eaters, they can be incredibly beneficial members of … I've seen it eat a longnose hawk. ). The crab would take either of its pinchers and touch the glass where my finger was! Beware, though, if you have a lot of caves in your rock work. They are known to pick these off the rocks and consume them. I have this crab in my tank which I believe to be an emerald crab. View our Holiday Shipping Schedule for Timely & Safe Delivery, 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.023-1.025, Calcium, Magnesium, Iodine, Trace Elements. He seems well behaved. Many aquarists supplement the Emerald Crab's diet with dried seaweed and chopped meaty foods, such as shrimp, as well as a quality pellet fish food. The Emerald Crab, Mithrax sculptus, are one of the most popular marine crab species for the home aquarium. I lost 3 smaller fish that liked to hide in the caves. I honestly don't know of another thing that eats algae in the aquarium. I would recommend them. The arrow crab is a fun and fascinating addition to a saltwater aquarium. It was difficult to tell if he was cleaning it, or eating it. One of the most popular algae eaters is the Scarlet Hermit Crab. These guys are pretty reclusive but get the job done and come out to grab what I have for them. In another thread, someone wrote about a black emerald crab attacking a feather duster. Copyright © 2020, LiveAquaria®. 1.Scarlet Hermit Crab. Keeps the substrate clean. 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. I have two Emerald Crabs and they are great on all my live rock. I ended up giving it to a local dealer. It’s striking appearance, with long spindly legs and its long, pointed beak, or rostrum, make … The emerald crab is the best bubble algae eater you can find! Our emerald crab is great scuttling around and through the live rock in our 50 gallon aquarium. The appearance of the Emerald Crab is a characteristic flat shiny Emerald Green … The Saltwater Ruby Red Mithrax Crab is very similar to the Saltwater Emerald Crab in exception of it being ruby red. Your email address will not be published. The Emerald Crab is well respected for its scavenging ability. Fish are nice, corals are pretty. It has more of a light brown or pink coloration. Deal at Bt Batok area. They thrive in tanks with plenty of live rock and a sandy substrate as the like to graze searching for algae. Your email address will not be published. Substrate Free Tank Husbandry (Bare bottomed) 8: 12-03-2006 11:59 AM: new crab! I would refer you to the below article for the typical water conditions that an emerald crab will do best in. Posted 20 minutes ago. On several occasions he was observed reaching out to fish especially my yellow tang but I didn't think he would do damage. 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. Talk about tricks! We have lost peppermint shrimp and hermit crabs to our Emeralds. But that's common sense. and Ventricaria ventricosa). DebsSisterFlo: General Reef Discussion: 12: 10-12-2006 12:31 PM: Where is my Emerald Crab?? 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. Easy to care for and considered reef safe with corals. Like other invertebrates, the Emerald Crab does not tolerate copper-based medications or fluctuating water parameters. 1) Bugatti Chalice 1 - $175 Very healthy & stable frag. I've been keeping tanks for about 20 years now and have kept many different set-ups along the way. After a closer inspection he wasnt moving funny, he was being eaten by my emerald crab. In the home aquarium, this member of the Majidae family requires a well-established aquarium with plenty of rockwork and hiding places. The emerald crab can bring a lot of joy to your aquarium, and be a vital member of your reef’s cleanup crew. I would refer you to the below article for the typical water conditions that an emerald crab will do best in.  While emerald crabs are very tolerant to less than ideal water parameters, the will best in the long term with good and stable water parameters. 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. 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. Back to: Tank Cleaners Emerald crabs have become increasingly popular in the aquarium hobby, revered by reef aquarists for their ability to control or eliminate the Bubble algae (Valonia spp. Common Name: Emerald Crab I have a small BA problem and I tried an emerald crab, within 5 minutes it was eating my superman monti. The most common species of crabs include hermit crabs, emerald mithrax crabs, and anemone crabs. Temp acclimated them and dropped em in. Emerald crabs are compatible with just about every fish or invert you can place in the tank. Required fields are marked *, Good Starter Fish and Clean-up Crew Options, Open brain corals capable of catching and consuming live healthy fish. Emerald crabs do best in aquariums with a lot of live rock. I found him nestled up in my Screaming Green Birdsnest coral this morning. Care Level: Very Easy Emerald Crabs, Blue Leg and Scarlet Reef Hermits are among the many Crabs and Hermit Crabs that we offer. Then I saw him in some rock work moving funny. As with most crabs, emerald crabs are very opportunistic feedings that have also been known to try to steel food and will aggressively try to get. I will supplement with nori or something once the algae is gone or move them to one of my other tanks. Once, I put my finger on the tank. I've added them to my reef often, and results vary. Photo of the Month Contest ... Photo Information for Emerald crab. Went to work on cyano and later they were munching away at green algae. 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