The emerald crab, Mithraculus sculptus, is a quiet, shy and fun to watch member of the reef clean up crew (CUC). How small is small? it became much bigger as the others and i assume this one killed my fish. i have a 60 gallon tank full with life rock crabs snails and easy corals. i added 2 clown fish. I am going to get clownfish and I dont want my crab to eat them. ClownTube Slide - Adding clownfish to an anemone with a big clear pipe - Duration: 8:57. melevsreef 2,197,451 views. ... Copepods and Emerald Crab - Duration: 0:46. The Emerald Crab, Mithrax sculptus, are one of the most popular marine crab species for the home aquarium. Answer Save. Or would it like to? As voracious algae-eaters, they can be incredibly beneficial members of a cleanup crew. Its distinct, flat shiny green body and hairy legs easily identify the Emerald Crab. They thrive in tanks with plenty of live rock and a sandy substrate as the like to graze searching for algae. It will enthusiastically feed on uneaten meaty foods and many types of nuisance algae. He settled in the first day and for the rest of the two weeks he was fully inflated and happy, only deflated a couple times for short periods of time. Rather, the crab is perfectly camoflaged to blend in with the rockwork. Can an emerald crab eat a clown fish? The crab isn't one that will eat itself to death and would take days to eat a fish that size. I got a yellow glown goby and an emerald crab. They're both probably slightly bigger than an inch. one disapperd the first night one other a few days later. Relevance. Emerald Crabs are popular because they help keep the tank clean and have been reported to eat bubble algae (Velonia sp.). At the lfs he was with many other clownfish and looked pretty healthy. Pegasus209 3,537 views. The Emerald Crab is well respected for its scavenging ability. Even with the help of hermits. So I've had a new Bubble tip anemone in my tank for 2 weeks now. I don't think your crab is the culprit. By feeding it gold fish am I training it to eat fish? Yes, they will eat bubble & hair algae, but if your tank is infested with a large outbreak you should not rely on an emerald crab being able to remove all of it. I think I saw the crab waving its claws toward the poor clown fish. I bought live rock from my lfs and sand. I am feeding my emerald crab goldfish does this mean it will attack my good fish once i get them? I set it up and cycled it and a couple if weeks later i added live stock. The clown fish that I have is slightly bigger than the crab. I searched the web and it says the crab can eat small fish. Updated August 6, 2019 Author: Mike - FishLore Admin Social Media: The Emerald Crab (Mithrax sculptus) is a saltwater invertebrate that is often used as part of a clean up crew in marine fish tanks. i discovered that one of my emerald crabs was not an emerald. Then you factor in that he had to eat another 3" fish as well in that time period. You should consider manually removing what you can, reducing nutrients, and then having the emerald crab control and eliminate the leftover. As the name implies, the emerald crab is green–but unlike the name–this crab does not shine like a jewel. Life is like a box of chocolate. 7 Answers. Both of the are ok and eating till this day, but i got a clownfish last week at my lfs to add to the stock. could your fish have jumped out of the tank and be behind your tank on the floor ? Emerald Crab. 1 decade ago. Unlike many other animals, Mithraculus sculptus will eat bubble algae and helps clean your aquarium of these algae. Rock and a sandy substrate as the others and i dont want my crab to eat algae! A cleanup crew your crab is well respected for its scavenging ability that! Will attack my good fish once i get them bubble tip anemone in my tank for 2 weeks now a! 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