Step 2: Determining the gender

The gender of a fiddler crab is easy to determine,male fiddler crabs have on normal claw and one big claw,while females only have two normal claws

see picture below

<p>Sorry forgot to add that it has sand for burying, algae tabs to eat, place to crawl out of water, and room temp water (about 70) , and only one tank buddy who WOULD miss the crab if he ever even saw it in the first place to miss it, a beta that is so tame, it does tricks ! </p>
<p>I haz to learnzd me to spellz wenz I bawt a krab sous I kewd axs ewe a kewston. My bad. Sorry, couldn't resist, no harm meant and not directed at anyone. I know....shame, shame on me...but it was a little funny (insert smiley face). So I got this little fiddler crab about 6 months ago and I keep forgetting I even have one since I NEVER see it. That is until I clean the filter. And low and behold....there he is seemingly happily clinging on to the filter. The first time or two I found him there, I put him back into the tank. Once he found a shell and went in it and never came out until I had to clean the whole tank. So when I put him back he just ended up clinging on to the filter again. At first, I was half freaked out that he kept doing that since I would forget I even had a crab, and was sort of worried he was getting accidently sucked up the filter. But then, after about tenth time I realized he was going there on purpose. I guess to eat off of the filter? Anyway, so that is where my fiddler crab hangs out at all the time. I guess its ok to let him hang out on the filter (?) since I have had him (or her) 6 months now and it has grown a LOT from when I first got him. Right? I tank you for your time and comments....get it...tank you? I crack myself up ! </p>
<p>i need comments about my crab living.</p><p>* i have a 3 gallon tank</p><p>* i have 3 male fiddler crabs</p><p>* i have 3 female fiddler crabs</p><p>* i have fish pebbles</p><p>* they have access to land and water</p><p>* i have treated fresh tap water</p><p>Any tips or suggestions?</p>
I'd get rid of the fish pebbles get sand, and have fresh water and something with salt water for them because they are salt water creatures. A 3 gallon tank is a bit small for 6 but the pebbles will break their legs. Good luck
<p>Six crabs in a three gallon tank? That sounds extremely crowded and unhealthy... Treated tap water is good, but I'd suggest adding some aquariums salt, their shells could weaken in freshwater. Finally, by fish pebbles I'm guessing you mean aquarium gravel, like the post above says, if they can't burrow, they could die of frustration, also, their legs could get caught in the gravel and break off. Yes, crabs can grow their legs back, but I'd imagine it hurts and would you like to have something constantly ripping your hair out even though it will grow back?</p>
I have had fiddler crabs for some time now and a lot of the info you have is great. I also have moon crabs and hermit crabs and before I became a mini pet shop due to my sons I had them all in one tank and they got along just fine. I have them all in different tanks now, they all have different attitudes. My fiddlers like to climb and swing craziest bleep I've seen and I've seen crazy things.
<p>Maybe do a spell check before you point out how uneducated people are..</p>
Employees at Pet Co. do not go to school to tell you how to take care of your animals. They are in educated. I have learned the same thing.
<p>I believe the word you were looking for, is&quot;uneducated.&quot; if you are going to attack someones intelligence or the level of their education, you should at least get that word right lol. </p>
<p>I would like to know if I could keep them on gravel... Because mine are living in it right know</p>
<p>Easy fix, Just add sand into the gravel, maybe remove some but a half half mixture is perfectly fine and will alow them to burry a little.</p>
No they like to dig into the sand gravel stresses them they can die sand sold in bags cheap at petstore.
Most of this is untrue I have two female fiddlers for a month now. They are in a fish tank with many fish totally immersed in water and doing great !!!
That's one month, wait for more.
I would like to know if I should feed and change my fiddler crabs water when they hibernate
I just bought a fiddler crab, but I wasn't told I needed a heater or salt water. Can I just use tap water for a certain amount of time til I get salt water?
<p>NO. First you'll have to make sure the tap water has been treated to remove any chloramines your city adds to the water. These will not evaporate just leaving buckets out overnight. If you don't treat tap water whatever you have will die.</p><p>I don't have crabs but I have goldfish. The same general rules apply to all. </p><p>Their health is dependent on the quality of their environment. I have never had any fish die of a disease because I make sure my water quality is very high and my fish has plenty of room. </p><p>If you want your crab to be healthy, make sure his environment is the best you can make it from the very start. If you already bought the crab, that means you need to go back and get whatever you need to supply him with his optimal environment now, not when you get around to it. </p>
<p>sorry it's DebbieH41 again my 4 grand children are very happy has I helped them to asked some for help about there pet grab. And what to feed it</p>
<p>hi I am look for some information about fiddlers crabs, it's just that my 2 Grand-daughters when the out with there poppa today to a truck show for cancer for kids and on there way bk they stopped at the beach and collected some shells. When they got home they put there shells on the floor and the found the tiniest crab. So could some one please tell me how we can keep it for a pet. I have been reading that u can use fresh water from the tap then some are saying you can't, because I have no idea my 6 yr old grand son has already gave it a name Molly, I hope it's a girl for his sake. Could some one Please help us. Thank you then we can have happy Grand kids, after what they have been thro in the last 24 hrs</p>
Stupid ive had my fidler crab for a year and i have her in a tank full of water she loves it and they eat algae tablets not freekin betta food that floats un reachable
<p>I recently bought a better fish and a half gallon tank. Immediately after putting him in, I felt guilty and put him in a drink dispenser (approximately 3 gallon) until I could research more. He is now in a 10 gallon take with a place. I kept him in a large net to let him get used to the new guy and make sure he wasn't flaring. Later that night I took him out of the net and let him out into the new tank. He has gotten along great with the pleco so far. My husband and I were talking about getting a freshwater crab to go in. I originally thought a fiddler crab since Walmart keeps them in the same aquarium as a pleco. Just like everyone else, I was misled. But what can you do. So now I'm glad the last Walmart was out and I didn't bring any home. Are there any other crabs that would thrive in a freshwater tank with a betta and a place?</p>
<p>most crabs are actually brackish water, and won't enjoy living in fresh water. crayfish, sold as mini lobsters in some places, are a better choice and quite entertaining.</p>
I just bought mine at Walmart yesterday out of impulse. I saw that they were in a tank of water and thought that's how I take care of them not knowing the proper way. This was very helpful thank you
<p>just wanted to say Thank you. I picked up a few fiddlers for my classroom. Your information has been very helpful</p>
Just for future reference- dying** not dieing. Spell check is your friend when you're attempting to be an athority on a subject.
Just for future reference- authority** not athority. Looks like you should make friends with spell check too, especially when correcting someone else's spelling. ;)
<p>+1 my fried</p>
Your comment is totally priceless. Isn't it ironic?
I recommend using the spell checker yourself! :)
Depending on where you come from, it can be dieing and spell check does not find that spelling to be erroneous. Dying means to dye something a colour or to leave life. Dieing on the other hand, can mean to leave life or to cut with a die cutter depending on what you prefer. English is a great language of confusion and we are all better off if we do not correct others on the finer points until we ourselves know all the finer points.
<p>I have just bought 2 fiddler crabs from Walmart (Both female) and I had asked one of the workers what you need. I bought rocks and a 1.5 gallon aquarium kit. I had no clue you need a heater and stuff. She only told me to get betta pellets for food and some rocks. She completely did not know what she was talking about and I am very frustrated. Would you think they could survive in 1.5 gallon aquarium kit?</p>
<p>they were working at Walmart, what did you expect? They get paid minimum wage in a soul destroying job that robs them of their dignity. </p>
<p>i just bought two fiddler crabs from walmart and now they are sick, won't move and one lost one leg. i think its because i used gravel. thanks for this instructable really helped. will now make a lot of changes!</p>
I bought a couple at walmart, and i think these crabs are sooo adorable. Walmart doesn't even know how to take care of them. I make a little beach with some brackish water for them. They are great climbers, and they can grip on anything including glues that are used to make the fish tank and will climb out if there is an opened gap. I feed my crabs with betta pellets, plankton, and shrimp pellets.
<p>I've had some crabs for a few months in a 5gal aquarium with goldfish and snails. The water is low saline content, and I give the crabs &quot;salad shrimp&quot; occasionally, as well as white &quot;tums&quot; for calcium. They love the tablets and the male crab will sometimes sit on one to hoard it till he's done eating. The snail likes it, too. <br>The crabs have a plastic castle to climb on to get out of the water. I'm looking at your page to think of a new tank (bigger box) so the crabs get more sand area. Thanks. </p>
<p>Hello, need a little help. I am one of those people that did not get good info from the pet store. We got a red crab yesterday and he has already lost 2 legs in a fight with a catfish. I put him in a temporary home and he seems to be doing ok. Should I put time and $$ into a suitable home or will he not survive? Thank you </p>
<p>As an employee at Walmart, don't blame all of us for poor care.<br>My Walmart actual takes good care of the fish, got my Gustavo and my baby fiddlers yesterday, all healthy and high active. I have just two fiddlers so I got a single gallon tank until they get larger. I was going to get fine gravel today, but I may get sand instead, but the man told me that I should get an ornament for them to climb on and so they can bask and not to keep them underwater all the time. He actually takes the fiddlers out 2-3 times a day. He like to bring food for them too, maybe some freeze dried bloodworms like my betta loves. but im excited for my babies</p>
<p>my son received a fiddler crab and a red clawed crab for Christmas. We have them in a 5 gal tank, set up as you have recommended. We do not have a heater but do have a basking lamp on most of the day. The crabs do not seem to be eating anything. We put crab pellets in a plastic upside down lid, tried a few little pieces of cucumber and part of an algae tablet. All of it just sits there until we take it out. It's now been 4 days. They seem inactive and spend most of the time hiding. What do you recommend?</p>
I think my fiddler crab is dead hes been like that for a day plz help
<p>If our crab could talk he would most definitely thank you! We bought it from walmart and set it up as they had him in store. </p><p>A week later it was upside down. we presumed dead. Laid there all day until my hubby got him out to get rid of him and noticed he seemed to be moving slightly. We researched (as we should have done right away) and came across your instructions, which we followed. 3 months later he is healthy and active and we are about to get him a couple of friends. So thanks :)</p>
Thanks for this info. I have been looking and looking and came across your post. We live in Pensacola FL caught some fiddlers actually about a dozen so I actually should return some to the shore. They just seemed so funny and thought the more the merrier LOL. Anyway i pray I can keep the little fellas alive. I brought home some of the water from the shore I was wondering if I can just keep changing out the water from the same shore instead of commercial salts ?
This isn't a bad way to do it but if you want fish in the same tank they wouldn't have much room. <br> <br>I really recommend Underwater Islands they have these really cool products that make it so you can have crabs in your tank but not have to have your tank only half filled. <br> <br>I attached a picture from their website so everyone can check them out if you want. <br> <br>their website is www.underwaterislands.com <br> <br>Check it out and let me know what you think!
Wups that didn't work, I thought I had attached a picture.... let me try again.
In your instructions you mention &quot;there's a basket under here to hold up the sand, and the heaters under there&quot;. <br>please advise what type of basket you use. <br> Also another question, when fiddlers molt, (&quot;they will stay upside down for hours&quot;) are they ever upside down underwater for hours? I assumed mine was dead- maybe he was molting? thanks so much for all the info!
You are a Jack!@# for trying to correct someone's spelling in an info page...Get a Life!!! This for help with Fiddler Crabs and show how to make them happy not a grammar check convention!!! I am here because I bought crabs from Pet Supermarket. and they are dying also!
You can have a way smaller tank about about a quarter gallon
I found this Ible VERY useful when i began thinking about owning some red clawed crab... I have a Facebook page thats sort of part blog on my journey into owning crab, if you have crab, or are looking to get some, feel free to join my page <a href="https://www.facebook.com/redcrabdiaries" rel="nofollow">https://www.facebook.com/redcrabdiaries</a>

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